在抗击非典的日子里，北京市民格外注意环境卫生，很多大街小巷几乎是一尘不染。
During the SARS emergency, Beijingers have been paying attention to public hygiene. Now most streets are clean and free of litter.
不吃不洁净的生食或半生不熟的食物，进食前一定要洗手，注意用餐时的环境卫生。
Do not eat raw food or clean half-baked food, to wash their hands before eating, when eating the attention of environmental health.
注意个人和环境卫生。
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