多种“媒介”携带细菌，包括生食、留有细菌的潮湿表面、我们的双手或皮肤，以及咳嗽或打喷嚏。
Bacteria are carried by various "media", which can include raw food, moist surfaces where bacteria have been left, our hands or skin and from coughing or sneezing.
手烘干机需要一个按钮的推的开局，按钮，可能有携带细菌。
Some hand dryers require the push of a button to start, and that button can carry bacteria.
现在一些研究者正表明，这种个体携带细菌的差异可能能够引导开发出新的破案工具。
Now some researchers are suggesting that these individual differences could lead to the development of new crime-solving tools.
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