The things you touch a zillion times a day — iPhone, BlackBerry, keyboard, computer mouse — are big carriers of germs.
你每天碰触无数次的东西——iPhone、黑莓手机、键盘、电脑鼠标—都是细菌的集中携带者。
The things you touch a zillion times a day — iPhone, BlackBerry, keyboard, computer mouse — are big carriers of germs.
你每天碰触无数次的东西——iPhone、黑莓手机、键盘、电脑鼠标—都是细菌的集中携带者。
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