| 单词 | 处理污水 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔ecologist〕Ecologists argue that the benefits of treating sewage with disinfectants are doubtful.生态学家认为用消毒剂处理污水是否有益值得怀疑。柯林斯高阶〔treat〕It was many years before the city began to treat its sewage.很多年以后这个城市才开始处理污水。柯林斯高阶 |
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