Piperazidine
[化] 哌嗪
🗣️ 情景例句
Well, I wasn't clear about my future,
我对自己的未来当时也不清楚，
How embarrassing!
多难为情啊！
As a matter of fact, we would like to discuss internally regarding item B.
事实上，我们希望可以先内部讨论B项议题。