Piperazidine
[化] 哌嗪
🗣️ 情景例句
I have to run.
我得赶紧走了。
No, You'll have to get off at the bank and take the A52.
不去。你到银行那一站就得下车，改乘A52路的。
Oh,there's someone at the door.
噢，门口有人！