Dach
[医][=diamino-cyclohexane]二氨基环己烷
🗣️ 情景例句
Have you had dinner yet?
你吃晚饭了吗？
Would you please tell Mr. Cooper that I'm here.
请您告诉库珀先生我在这里。
Yes, Mr. Wu. Thank you.
好的，吴先生。谢谢您。