Pempidine
[化] 潘必啶; 1,2,2,6,6-五甲基哌啶\\n[医] 五甲哌啶
🗣️ 情景例句
No smile, no surprise.
不笑 ，就没有惊喜。
Could you tell me the cost of production per unit?
请你告诉我每件成品的生产成本好吗？
The guards couldn't have been watchig very carefully.
警卫不可能一直认真地查看。