很明显冰川作用就发生在相对不远的过去,因为漂流物很软,像新鲜的沉积物。
It was apparent that the glaciation occurred in the relatively recent past because the drift was soft, like freshly deposited sediment.
卵巢摘除后这样的保护作用就消失了。
当从不同的数据源中整合数据集时该特性的作用就显得尤为明显。
This feature is very useful when combining data sets from different data sources.
But Aristotle used to think that if you want something to move, there has to be some agency making it move.
但亚里士多德认为,如果要让物体运动,那就必须有某种作用让它运动
If nothing is touching the body, there are no forces on it, with one exception which is, of course, gravity.
如果没有实体接触,那么它就不受作用力,当然一个例外那就是引力
When they do find the cell they're capable of interacting with the receptor forming some kind of chemical interaction with the receptor.
但当它们遇到细胞时,就能够与受体相互作用,与受体发生化学反应
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