| 单词 | 纯净度 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔CLEAN〕There is concern about the purity of our tap water. 我们的自来水的纯净度令人担心。朗文写作活用〔NEED/NECESSARY〕For the second year in a row, the city's water supply has failed to meet minimum purity requirements. 本市的供水已经连续第二年没有达到最低要求的纯净度。朗文写作活用〔purity〕They worried about the purity of tap water.他们担心自来水的纯净度。外研社新世纪 |
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