Computer keyboards can be dirtier than a toilet: study.

电脑键盘比马桶座还脏？ ！

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Computer keyboards are also a major source of radiation, perhaps you did not know.

也许你还不知道，电脑键盘也是主要的辐射源。

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Computer keyboards are also a major source of radiation, perhaps you did not know.

也许你还不知道，电脑键盘也是主要的辐射源。

youdao