如果你想一天笑40次，那就要清楚什么会使你发笑，找到能逗你笑的原因。

If you're trying to laugh 40 times daily, it's important to know what makes you laugh and have ready access to laugh-provokers.

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调查发现，婴儿一天能笑300次，十几岁的孩子平均一天笑6次，而年龄超过60岁的人一天只笑2.5次。

While infants laugh up to 300 times a day, that figure falls to an average of 6 laughs a day for teenagers and only 2.5 daily chuckles for those more than 60 years old, the survey found.

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养蟋蟀之所以是一门高风险的行当，还有一个原因：就在今年的一天之内，徐墨笑的18,000只蟋蟀死于一种神秘的疾病。

Cricket breeding is a risky business for another reason: in just a day this year, a mystery ailment killed a generation of 18,000 of Mr. Xu's crickets.

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He would be quite famous in his line of work. Whether Magda was his wife or not, one evening when he was wise-lined and gray at the temples he'd smile gravely, at a fashionable dinner party, and remind her of his youthful passion.

他会在他的行业中变得相当有名，不管Magda是否,成为他的妻子，等他有了智慧的皱纹，两鬓斑白了,他会有天晚上在一次上流社会的晚宴上，庄重地微微一笑,对她提起自己少年时代的钟情。

耶鲁公开课 - 1945年后的美国小说课程节选