Cobalamine
[化] 钴胺素
🗣️ 情景例句
Drug dependence should be looked at as a medical issue, not a criminal one.
毒品信赖应该被看成是医学问题，而不是犯罪问题。
It's nothing. Don't mention it.
区区小事，何足挂齿。
We're out of one item on your order.
你我订的货里有一项我们没有了，