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
You drive a hard bargain.
你真会讲价。
How often do you go swimming?
你多久去游一次泳？
I'd like a cup of tea. What about something to eat?
我想来杯茶。吃点什么呢？