Polychlorohydrocarbon
多氯代烃
🗣️ 情景例句
The whole house needs re-painting.
整个房间需要重新粉刷。
It's really different from what I expected.
确实和我想象的不一样。
I am used to traveling by air and only on one occasion have I ever felt frightened.
我习惯了乘飞机旅行，只是有一次把我吓坏了。