Before you go outside to play always check the pollution index.
那你在出去玩之前，一定要经常检查空气污染指数。
Each pollution index can reach the air environment quality level-2 standard (GB3095 -1996).
各污染指标可满足环境空气质量(GB3095—1996)中二级标准。
Each pollution index can reach the air environment quality level-2 standard (GB3095 -1996).
各污染指标可满足环境空气质量(GB3095—1996)中二级标准。
应用推荐