Bacteria and other microorganisms can enter the body through a cut in the skin.
VOA: special.2011.01.26
If you get bacteria under your skin, if you get a cut and somehow that cut gets - bacteria gets inside there, the bacteria can reproduce on their own.
如果你皮肤里有细菌,而你又割伤了自己,并让细菌进入了伤口,细菌自身就可以繁殖
Currents are strong and the creatures sometimes cut the skin of the divers.
VOA: special.2009.08.25
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