1、A doctored version praised the cream but the punch line was that it gave users disgusting spots.
改編了的廣告也贊揚這種面霜，但關鍵的一句臺詞是說它使使用者長出討厭的斑點。

2、To enhance the surprise, it's best to place the punch line at the end of the joke.
提高意想不到的效果，就在笑話的最后拋出笑料，或者是一句畫龍點睛的結語，這是最好的方法！

3、If you are like most people, that punch line triggered at least a hearty laugh.
如果你同多數人一樣，這個幽默故事至少也會讓你放聲大笑。

punch line翻譯