Extrinsic contaminants
[化] 外来杂质
🧩 词语组成解析
extrinsic
[ɛks'trɪnsɪk]
adj. 非本质的;外在的;外来的;外部的;
n. 污染物, 致污物( contaminant的名词复数 )
🗣️ 情景例句
He is in conference right now.
他现在在开会。
I'm too tired.
我太累。
I once spend an uncomfortable weekend which I shall never forget at his house.
有一次，我在他家里度周末，过得很不愉快。这事我永远不会忘记。