Piperazidine
[化] 哌嗪
🗣️ 情景例句
You are very lucky, Robbie, to have such a nice family.
Robbie你真幸运 拥有这样温馨的家。
He feels resentment at the interruption.
他因被人打断而恼怒不已。
However, there are undoubtedly some wrong ways,
然而，却毫无疑问地有几种错误的方法。