Involatile matter
[化] 难挥发物
🧩 词语组成解析
不挥发的
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
Tell me about your educational background.
告诉我你的学习背景。
Don't forget to put stamps on your letter.
别忘了贴邮票。
What do you do as a director?
作为导演您具体干什么呢？