| 释义 |
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〔worth〕A diamond's worth is determined partly by its cut and clarity.钻石的价值部分取决于它的切割和净度。韦氏高阶 |