查阅现在的空气污染指数，保持健康！

Check the PSI Reading now, Keep yourself healthy!

youdao

那你在出去玩之前，一定要经常检查空气污染指数。

Before you go outside to play always check the pollution index.

youdao

那你在出去玩之前，一定要经常检查空气污染指数。

Before you go outside to play always check the pollution index.

youdao