Nitrocobalamin
硝钴胺
🗣️ 情景例句
Lots of special country things.
有许多特别的乡村趣事。
Could all of you take your seats? We need to continue our meeting.
请你们各位就坐好吗？我们要继续开会了。
Class 3 and Class 1 were in front!
他们两人同时传出接力棒。这时3班和1班在前边！