wash hands

Do not touch your eyes, nose, or mouth with unwashed hands.
不要用沒有洗乾凈的手觸摸眼睛、鼻子或嘴。

Cover your coughs and sneezes with a tissue or your sleeve, not with your hands.
咳嗽或打噴嚏時，用紙巾或袖子（而不是用手）遮住口鼻。