the state of being opaque , or the degree to which something is opaque
发音
例句
1. 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。 2. Opacity of the eye lens can be induced by deficiency of certain vitamins. 眼球晶状体的混浊可由缺乏某些维生素造成。