Polymer degradation
[化] 聚合物降解
🧩 词语组成解析
🗣️ 情景例句
My vacation was too short, I needed more time.
假期太短了，再有几天就好了。
It's two o'clock.
两点钟。
I fell in love with her at first sight.
我第一眼见到她就爱上了她。