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학년 · 단어 81개 · 표현 52개 · Q&A 0개
초등영어 리딩이 된다 Jump 2
단어81 words
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smart
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sell
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beverage
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collect
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coin
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from
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people
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many
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type
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most
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round
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light
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all
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different
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size
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weight
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how
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can
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determine
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value
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each
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have
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sensor
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magnet
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with
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measure
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detect
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metal
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also
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now
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know
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river
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freeze
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winter
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lake
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pond
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so
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we
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go
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skate
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or
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ride
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sled
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on
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frozen
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sea
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but
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happen
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often
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freshwater
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seawater
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lower
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temperature
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because
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has
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salt
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in
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use
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plastic
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where
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after
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huge
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area
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waste
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island
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call
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land
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current
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middle
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ocean
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pile
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become
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bigger
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dangerous
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toxic
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eat
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die
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fish
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could
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harmful
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chemical
문장52 expressions
Enter 또는 + 버튼을 눌러 추가하세요. 항목에 마우스를 올려 편집하거나 삭제하세요.
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vending machine
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there are
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what about
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fresh water
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freezing point
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a lot
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there is
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look like
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come from
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carry ~ into ···
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sea animal
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Hi, I am a smart vending machine.
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I sell beverages.
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And I collect coins from people.
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There are many types of coins.
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Most coins are round and light.
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But they are all different in size and weight.
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How can I determine the value of each coin?
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I have light sensors and magnets.
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With the light sensors, I measure the size of the coin.
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With the magnets, I detect the type of metal.
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And I also detect the weight of the metal.
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Now I know the size of the coin.
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I know the weight of the coin.
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So I can determine the value of the coin.
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Rivers freeze in winter.
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Lakes and ponds also freeze in winter.
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So we go skating or ride sleds on the frozen lakes.
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What about the sea?
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The sea can also freeze.
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But it doesn't happen often.
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Most rivers are freshwater.
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Fresh water freezes at 0℃.
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But seawater is different.
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It freezes at a lower temperature, 2℃.
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That's because seawater has salt in it.
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Salt lowers the freezing point of seawater.
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We use plastic a lot.
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But where does it go after we use it?
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There is a huge area of waste in the Pacific Ocean.
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It looks like an island.
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So we call it "Plastic Island".
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The waste comes from land.
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Currents carry the waste into the middle of the ocean.
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The pile of waste is becoming bigger.
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And it is becoming more dangerous.
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The pile is dangerous for sea animals.
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Most of the plastic waste is toxic.
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Sea animals can eat it and die.
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It is also dangerous for us.
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Many fish eat the plastic.
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And we could eat these fish with harmful chemicals!
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