Hexamethyleneamine
己烯胺
🗣️ 情景例句
Susan, I'd like to continue this conversation later. Susan
我希望等一下能继续我们的谈话。
Did you criticize him for his mistakes?
你因为犯错误的事批评他了吗？
and of dark narrow streets full of petrol fumes and toxic gases,
和阴暗狭窄的街道组成