V-r relaxation
[化] 振动-转动松弛
🧩 词语组成解析
🗣️ 情景例句
I'm afraid the cardboard boxes are not strong enough for transport by sea.
我担心这种纸箱，用于远洋运输，不够结实。
During the two years since I took charge of the department.
在我负责这个部门的两年中。
No, he isn't.
不，他没有。