Pentalkylated
五烃基代的
🗣️ 情景例句
Thank you for reminding us that you will be in town next Wednesday and would like to discuss your printing services with Ms. Smith.
谢谢你告诉我你下同周三将到达达镇上并希望与史密斯夫人讨论有关印刷服务问题。
I'm going to send her six bags.
我要送给她六袋。
It's very kind of you to help me.
你帮助我真是太好了。