Recent evidence suggests that some cancers may be caused by viruses.

近期的证据指出： 有些癌可能是由病毒引起的。

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The flu is believed to be caused by viruses that like to reproduce in the cells inside the human nose and throat.

流感被认为是被喜欢在人的鼻子和喉咙的细胞里进行复制的病毒导致的。

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C the flu is believed to be caused by viruses that like to reproduce in the cells inside the human nose and throat.

据证实，流感是由喜寄生于鼻喉处细胞里的病毒所引起的。

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At least 90% of cervical cancer is known to be caused by papilloma viruses, and Dr zur Hausen suspects that all are.

ECONOMIST: The 2008 Nobel science prizes