Be altruistic: cover your mouth and nose with a disposable tissue when you cough or sneeze, bin the tissue immediately and, yes, wash your hands.

利他：当你咳嗽或打喷嚏的时候，用一次性纸巾捂住你的口鼻，并立刻把纸巾丢进垃圾箱，然后洗手。

youdao

Surgery to remove necrotic tissue, cover skin defects and correct deformities.

外科手术切除坏死组织、修复皮肤缺损和矫正畸形。

youdao

To prevent transmission, people should cover their mouth and nose with a tissue when coughing, and wash their hands regularly.

为了预防传播，人们应在咳嗽时用纸巾掩住口鼻，并经常洗手。

youdao

If you have to cough or sneeze you should cover your mouth with a tissue or cough into your shoulder or elbow to prevent spread of virus.

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Collins, a 20-year-old sophomore at Boston's Emerson College, learned soon after he joined the Phi Alpha Tau fraternity that his insurance company declined to cover surgery to remove breast tissue to flatten his chest.

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