Well, it turns out that if you want to check two conditions and you only care that one of them is true or the other one is true.

好的，结果是如果你想要核对两个条件,你只关心其中一个是正确的,或另外一个是正确的。

哈佛公开课 - 计算机科学课程节选

If you think back to New Haven in the 1950s or 1940s, or 1930s, a lot of the food, much more then is the case today, was grown locally and was sold in markets and so there might have been one person or one step that resided between you and your food.

若回顾上个世纪30到50年代的纽黑文,比起今天 很多的食物都是产于当地,然后拿到市场上去销售,你和你所吃的,食品之间可只隔着一个人或一道工序

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

While there are only four different bases that make up either RNA or DNA, and so the complexity of an RNA polymer is limited.

在RNA或DNA的构成中,只含四种不同的碱基,因此一个RNA分子的复杂程度是有限的

耶鲁公开课 - 生物医学工程探索课程节选