Uldpe
[化] 超低密度聚乙烯
🗣️ 情景例句
I don't envy him his money problems.
我庆幸自己没有他那些金钱的烦恼。
You'll be sick, if you aren't careful.
你不小心的话，就会生病。
Such an attempt only aggravates the strain of mental effort.
这种愿望只能加剧精神紧张。