Decachlorobiphenyl
[化] 十氯代聯(lián)苯
??? 情景例句
There's nothing's as troublesome as a naughty clild.
沒有東西比淘氣的孩子更麻煩了。
It wasn't any bother.I was glad to do it.
不麻煩.我樂意做。
Let's ask this policeman. He may know.
咱們問問這位警察。他可能知道。