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• bedpan
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• calcium
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• hydrogen
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• trace element

calcium

['kælsɪəm]

释义

n.钙
A chemical element, atomic number 20, that is an alkaline earth metal and occurs naturally as carbonate in limestone and as silicate in many rocks.

例句
Walt:Oh, wait a minute.What about calcium? Calcium's not a trace.Got a whole skeleton to account for.(Breaking Bad)
沃特：噢，等一下。钙呢？钙可不是微量元素。骨骼绝大部分都是钙啊。（绝命毒师）