Piperazine
n. 哌嗪\\n[化] 哌嗪
??? 情景例句
Would you mind?
你們不介意吧
Love laughs at locksmith.
春閨鎖不住。
Well, we listened to lectures about pollution, agriculture, nuclear waste, radiation and so on.
噢，我們聽取有關污染、農業、核廢料、輻射等講座。