Commodity polymer
[化] 通用高分子
🧩 词语组成解析
🗣️ 情景例句
He's a nice man.
他是个好人。
I will go to the sportsfield.
我将去运动场。
He became mortally ill a few months before we had planned to go and,
就在他计划回国的前几个月，他突然身患绝症。