Pentachlorinated
五氯化的
🗣️ 情景例句
We prefer to have payment in US dollars. It may be difficult for us to do so.
我们用美元付款。用人民币支付可能有些困难。
I couldn't help it.
我没有办法。
Thank you, doctor, said Mrs. Brown.
“谢谢你，医生，”布朗夫人说。