为它提供合适的温度，食物和光照也要保证充足的数量和质量，这样龟越冬就不特别难了。

Provided that temperatures are adequate, and that both food and light are also available in sufficient quantity and quality, over-wintering tortoises is not particularly difficult.

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联盟号飞船用于在地球和轨道之间运输航天员，而且经常保持充足的数量，因此当危险发生时，它们可以作为“救生船”使用。

Soyuz capsules are used to ferry crew to and from the orbiting platform, and enough vehicles are always present so that they can be used as "lifeboats" if an emergency arises.

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可以预见的充足的鲑鱼数量让一些本土文化得以繁荣发展，濒死的产卵者喂养了熊、鹰和其他动物，并最终喂养了土壤本身。

The predictable abundance of salmon allowed some native cultures to flourish and dying spawners feed bears, eagles, other animals, and ultimately the soil itself.

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The cell that's producing the signal produces enough of the molecule so that it enters the bloodstream, it circulates throughout your body, eventually it reaches a cell at a great distance, which has a receptor for that ligand and the signal gets received.

发出信号的细胞产生信号分子,数量十分充足 能够进入到血液中,信号随着血液流遍全身,最终到达较远处的细胞,在这些细胞上有与配体配对的受体,信号被细胞接收

耶鲁公开课 - 生物医学工程探索课程节选