How to Train Your Dragon is the story of a scrawny teenaged Viking, Hiccup Horrendous Haddock the Third, who lives on the island of Berk in the North Sea.
如何培养您的龙是一个骨瘦如柴的少年海盗的故事，打嗝第三骇人听闻的黑线鳕，谁在伯克在北海岛屿的生活。
Lee Berk at Loma Linda University in California thinks so.
加利福尼亚洛马琳达大学的李·伯克认为是可以的。
In the mid-1990s, Dr Berk found that laughter increases the number of natural killer cells in cancer patients. Natural killer cells are the body's way of fighting tumours.
早在上世纪九十年代，伯克博士就发现笑会增加癌症病人天然杀伤细胞(也叫抗癌细胞)的数目，天然杀伤细胞是身体对抗肿瘤的办法。
"If fear is too great," says Berk, "send in the clowns." now.
“如果你非常害怕，”Berk说，“那就看小丑表演吧。”
"If fear is too great," says Berk, "send in the clowns." now.
“如果你非常害怕，”Berk说，“那就看小丑表演吧。”
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