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BNC: 0 COCA: 37603

efflorescence

noun
/ˌefləˈresns/
/ˌefləˈresns/
[uncountable, countable]
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  1. (formal) the most developed stage of something全盛期;最高潮期
  2. (chemistry化学) the powder that appears on the surface of bricks, rocks, etc. when water evaporates(砖、岩石等表面的)风化物
BNC: 0 COCA: 37603
BNC: 0 COCA: 37603
BNC: 0 COCA: 37603

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