Leucomaines
[化] 蛋白毒碱类
🗣️ 情景例句
Sure, but never before have we had payment in RMB.
当然可以，不过我们从来没有用过人民币付款。
I had thought he knew the time of the meeting.
我原以为他知道开会时间。
the line that the pen was drawing wriggled from side to side.
笔所画出的线就会左右摆动。