- 释义：
- n. 不透明性，晦涩
- 例句：
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He insisted that the mineral content of the water determined the opacity.
他坚持认为水的清澈程度取决于其中矿物质的含量。
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Opacity of the lens is readily visible, especially in advanced cases.
晶状体的混浊易于识别, 特别是在晚期病例.
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By definition a cataract is an opacity in the lens.
白内障的定义就是晶状体混浊.
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