Pech
[医][=Polyepichlorohydrin]聚表氯醇
🗣️ 情景例句
What did you learn at school today?
你今天在学校学了什么？
I said, Do you want me to help you?
我是说:你要我帮忙吗？"
We can do that at the meeting tomorrow.
我们明天开会时再签订吧。