Cobalamine
[化] 钴胺素
🗣️ 情景例句
What have you learned from jobs you have held?
你从以往的工作中学到什么？
I am not sure such data does exist.
我不确定是否有这样的资料存在。
I didn't know she could swim. Who taught her?
我不知道她会游泳。谁教她的？