9. WASHING YOUR FACE WITH A HARSH CLEANSER
9.使用清潔力強(qiáng)的潔面產(chǎn)品

Washing your face removes many bugs from the surface of our skin, particularly if you use cleansers containing alcohol as this kills bacteria.
洗臉會(huì)去除皮膚表面的許多細(xì)菌，若你使用含酒精的潔面產(chǎn)品就更加如此，因?yàn)榫凭珪?huì)殺死細(xì)菌。

Most cleansers also contain soap, and this reduces the amount of oil in our skin, which loosens the bacteria’s hold — so they fall off, explained Hugh Pennington, an emeritus professor of bacteriology at the University of Aberdeen.
阿伯丁大學(xué)細(xì)菌學(xué)榮譽(yù)教授休·彭寧頓解釋說，大多數(shù)潔面產(chǎn)品也含有肥皂，肥皂會(huì)減少皮膚上的油脂，減小細(xì)菌的附著力——所以它們會(huì)掉下來。

This cleanliness is short-lived, as the layer of bugs rebuilds itself within about 20 minutes.
這種清潔力維持時(shí)間非常短，因?yàn)榧?xì)菌層在20分鐘之內(nèi)就會(huì)再次形成。

The problem is that we have bacteria on our hands, and when we touch our faces, as we inevitably do, many of the bugs that have adapted to live on moist surfaces such as our face will quickly be transferred back.
問題是，我們手上有細(xì)菌，當(dāng)我們觸摸臉時(shí)（我們不可避免會(huì)這樣做），很多已經(jīng)適應(yīng)生活在潮濕表面的細(xì)菌（比如說我們的臉）就會(huì)很快轉(zhuǎn)移過來。