在睡眠期间，腺苷结合的位点数量减少。

During sleep, the number of sites to which adenosine is bound decreases.

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通过土地利用活动对珊瑚的破坏会导致以棘星幼虫为食的捕食者数量减少。

The destruction of coral through land use activities would cause a decrease in the number of predators that feed on Acanthaster larvae.

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随着野兔密度的增加，这些树枝的数量减少，迫使野兔以低质量的高纤维食物为食。

As hare density increases, the quantity of these twigs decreases, forcing the hares to feed on low-quality high-fiber food.

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It's changing the number of shares outstanding, so the value of the company declines by the same amount; it has to, as if they had just paid a dividend.

它改变了发行股数,所以公司价值减少了相同的数量,必须如此,就好像支出了股利一样

耶鲁公开课 - 金融市场课程节选

Some people can fight the brain off in this case, and control their food intake, maintain a healthy diet, and maintain a normal weight, but the number of such people in the population is shrinking by the day.

有些人可以抵制大脑的控制,控制食物的摄入量,维持健康饮食 保持正常体重,而今,这类人的数量日益减少

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Now these parts of the world are shrinking in the number; but let's say you lived in Ethiopia or Somalia, or places where food really is scarce way too much of the time, then having this particular biological drive, having a brain that wants you to seek out these foods would be highly adaptive.

现在这些地区的数量正在减少,但如果你生活在埃塞俄比亚或是索马里,或是当前食品十分短缺的地区,那么拥有这种生物驱动力,拥有不断驱使你去寻找食物的大脑,会让你有极强的适应能力

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选