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笑吧,让世界和你同笑。更妙的是,你可能因此而延年益寿。一位挪威研究人员如是说。这位研究者是挪威科技大学医学院的斯文·斯维白克。
Laugh, let the world smile with you. Better still, you may be prolonging your life because of this. One Norwegian researcher said. The researcher is Sven Svibek of the Norwegian Medical University Medical School.