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nearly almost near mostly
38 million square kilometers． 4.2 million square kilometers． 1.13 million square kilometers． 11.4 million square kilometers．
At last In fact On average For example
it is difficult to cool the engine the driver can only open the hood on a hot summer day the driver has to be very patient it takes a long time to open the hood in summer
At last In fact On average For example
Unusually strong winds and clearer skies． Heavy clouds and light winds． Longer summers and shorter winters． Thin ice and open water．
how accurate the new measurements are． how thick the ice is in it． how serious the problem of the ice melt in the Arctic is． how dangerous it is to travel to it．
when our summer camp begins when does our summer camp begin where our summer camp begins where does our summer camp begin
establishes． expands． creates． constructs．
therefore yet already instead
the ice melt in the Arctic may never stop． scientists are trying hard to stop the ice melt in the Arctic． scientists are delighted to find out what is going on in the Arctic． the warming trend in the Arctic can be reversed in the near future．
construct extend create expand
made up took up picked up turned up
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