Polychlorohydrocarbon
多氯代烃
🗣️ 情景例句
I'd like to cash some traveller's checks here.
我想在这儿兑换一些旅行支票。
I couldn't believe my ears.
我真的不敢相信。
'A fire extinguisher, my dear,' answered the Ambassador drily.
“灭火器弄的，亲爱的，”大使冷冷地回答，