Covering your mouth and nose with a tissue when coughing or sneezing.

咳嗽、打喷嚏时用纸巾掩住口鼻。

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In addition to washing hands often, she recommends covering your mouth when coughing and sneezing and avoiding touching your eyes and nose in case the virus is on your hands.

除了经常洗手，她建议我们在咳嗽和打喷嚏的时候遮住嘴，还要避免用手去碰自己的口鼻，因为病毒很有可能就残留在我们的手上。

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They're in your mouth, up your nose, and covering your skin, all the while releasing a cacophony of quorum-sensing signals.

他占据在我们的口腔里，鼻子上，覆盖所有的皮肤，一刻不停地释放嘈杂的群体感应信号。

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Prosecutors alleged that she killed Caylee by using chloroform and covering her nose and mouth with duct tape, and that she put her body in the trunk of her car before dumping it in the woods.

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