Polychlorohydrocarbon
多氯代烃
🗣️ 情景例句
Hey, what's up buddy?
怎么着，哥们。
Patience is a flower that grows not in everyone's garden.
忍耐是朵花，并非人人园中都开发。
The last order didn't work out too well for us.
上回订的货用起来不怎么顺。