Polychlorocarbon
[化] 多氯烃; 多氯代烃
🗣️ 情景例句
And Alexandra brought us a pumpkin pie. Alexandra
Alexandra 给我们带来了一个南瓜派。
Children enter school at the age of five,don't they?
孩子们在5岁时入学吗？
We don't have any different opinions about the contractual obligations of both parties.
就合同双方要承担的义务方面，我们没有什么意见。