From the comedy, we get not only laughter, contemplation and inspiration as well;

从喜剧中，我们不仅得到欢笑，还有沉思和 启迪；

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Scientists also found that the only real and relaxing laughter works not just polite laughter.

科学家们还发现，真正放松的笑声不仅仅是礼貌的笑声。

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Laughter not only makes you feel good, but it helps boost your immune system too.

大笑不仅可以使你感觉良好，还能加强你的免疫系统。

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One says, "This is not funny, " only to be drowned out by the laughter of the main speaker and those supporting him.

CNN: Why don't some boys see it as rape?

Speaking of 'tween heartthrobs, Scott Brown is here. (Applause.) I admire Scott -- a rare politician in Washington with nothing to hide. (Laughter.) Now, you should be aware that Scott Brown is not the only one with a salacious photo spread floating around.

WHITEHOUSE: President Obama and Jay Leno at White House Correspondents Dinner | The White House