Erythrotin
维生素B12的旧名
🗣️ 情景例句
There's no doubt about that.
此事确定无疑。
Well, I'd probably say you should think about it seriously.
哦，我可能会对你说，你应该认真考虑一下你的决定。
That all depends on the size of the order.
这要订购量的多寡。