当她离目标还有二十英尺远的时候，她看到一个穿着灰色职员服的年轻绅士在摸索着表链，向外望着。

When she came within a score of feet of the desired goal, she observed a young gentleman in a grey clerk suit, fumbling his watch-chain and looking out.

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一些生物学家假设，如果一株植物处在另一株植物的荫蔽下，它就会停止生长，当它感知到红光与远红光的不寻常比例时，反应就会触发。

Some biologists hypothesize that a plant will stop growing if it's in the shade of another plant, a reaction that's triggered when it senses an unusual ratio of red light to far-red light.

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当孩子们下车时，应该让他们离巴士五步远。

Children should be asked to take five large steps away from the bus when they get it off.

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So as we go down we're now adding electrons to further and further away shells, so what we're going to see is that the atomic radius is going to increase as we're going down the periodic table.

当我们向下走时,我们会将电子加在越来越远的壳层上，因此我们将看到原子半径,将随我们沿周期表向下走而增大。

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