| 污染HSK 4 | wū rǎn | pollution; contamination; Classifiers: 个 | |
| 污水 | wū shuǐ | sewage | |
| 贪污HSK 6 | tān wū | to be corrupt; corruption; to embezzle | |
| 排污 | pái wū | to drain sewage | |
| 大气污染 | dà qì wū rǎn | air pollution; atmospheric pollution |
| 1 | There are some stains on my clothes. | |
| 2 | The sewage becomes clean after treatment. | |
| 3 | Industrialization will increase the degree of pollution. | |
| 4 | The air pollution in the city is getting worse and worse. | |
| 5 | Environmental pollution has become a global issue. |