Extraneous matter
[化] 外来杂质; 异物
🧩 词语组成解析
matter
['mætɚ]
n. 事件;（讨论、考虑等的）问题;重要性;物质;
vi. 要紧，重要;化脓;有重大影响;有重要性;
🗣️ 情景例句
Too easy for you?
对 ，太容易了
Oh! Look who's coming?
哟！看看是谁来啦？
It's very kind of you to call.
谢谢你来告诉我。