Scientists think that such unseasonal temperatures are the result of both global warming and natural climate variability.
VOA: standard.2009.09.03
But through using this sort of computer generation, and then asking people what they think of this face, what they think of that face, scientists have come to some sense as to what really makes a face attractive, both within cultures and across cultures.
但是通过使用电脑合成,然后问人们,他们觉得这个长相如何,那个长相如何,科学家多少了解到,怎样才算是迷人的面孔,无论是在一种文化下还是跨文化的
Scientists used to think that the islands were connected to the South American mainland and floated out to sea slowly.
VOA: special.2009.12.16
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