| How to Reduce the Effect of Air Pollution | |
| Background | Air pollution is the world's biggest environmental health（1）________. |
| First | Wear a mask（口罩）when your city has（2）________air quality（质量）. |
| Second | Remove your（3）________clothes when you get home and then take a shower to clean off any particulates（微粒）on your（4）________. |
| Third | Open your windows to have（5）________air flowing in. |
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发布：2024/10/20 9:0:1组卷：1引用：1难度：0.5
