英国机场管理局以及政府认为，由于飞机的噪音和污染都在降低，额外的航班便将在可允许的范围之内。

BAA and the government think that because aircraft are getting quieter and cleaner the extra flights will be bearable.

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依各国情况而定，减少这种不平等可降低16% - 56%的覆盖缺口。

Reducing such inequality could lower this gap by 16% to 56%, depending on the country.

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由于可降低人的免疫力的任何东西，例如艾滋病毒、年龄增长或某些医学病症，细菌变为活动性。

Bacteria become active as a result of anything that can reduce the person's immunity, such as HIV, advancing age, or some medical conditions.

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So tens or hundreds of millions of dollars would go into a study like this by the time it was completed, money that could have been used for other things, to test whether eating a low fat diet would reduce risk for breast cancer.

数以百万计的美元,投入到这样的研究,当研究结束时,本可以用来做其他事情的钱,被用来检测是否低脂膳食,可降低患乳腺癌风险

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选