Piperazidine
[化] 哌嗪
🗣️ 情景例句
You sound excited about Columbia.
听起来你对Columbia大学跃跃欲试。
Never cackle till your egg is laid.
事竟成，才声张。
The only regular visitors to the monastery in winter are parties of skiers who go there at Christmas and Easter.
冬天常来修道院参观的只有一批批滑雪者。他们在圣诞节或复活节到那儿去。