We know this because if babies hear other babies crying they will get upset.

我们之所以会知道这点,是因为婴儿听到别的婴儿哭，他们会不高兴。

耶鲁公开课 - 心理学导论课程节选

because they are a little bit more willing to hear something

因为此刻他们更愿意倾听那些，

上东区的瑜伽老师 - SpeakingMax英语口语达人

I've found some people really have to come to the first and second row because they claim that if they don't hear me they cannot really go to sleep.

我发现有些人必须得在第一,二排睡觉,因为他们说如果听不到我的声音,他们就无法入睡

耶鲁公开课 - 基础物理课程节选

You hear about credit unions a lot because they're in your neighborhood and they're advertising for small depositors, so they're in your face, but commercial banks are actually much more important.

你们常会听到信用合作社,因为它们就在你家附近,它们还面向小额储户打广告,所以比较显眼,但商业银行其实要重要得多

耶鲁公开课 - 金融市场课程节选

For one thing, one theory is that babies hear other babies cry, because babies are so stupid they think they themselves are crying; if they're crying they must be in some sort of pain so they cry some more."

例如，有理论说婴儿听到别的婴儿哭，因为婴儿都笨得要命,他们以为是自己在哭;,他们会以为自己哭了，那一定是痛了,所以他们就哭得更厉害”

耶鲁公开课 - 心理学导论课程节选