Triethylenediamine
[化] 三亚乙基二胺
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
Hello. May I speak to Mr. Green?
你好，我找格林先生。
Hello, Li Lei.
你好，李磊！