Cobamide
钴胺酰胺
🗣️ 情景例句
Bye-bye. It's all set. I'm going.
再见。都安排好了。我现在就去。
Please send us your price list of quartz clocks.
请寄给我们贵方的石英钟价目单。
Can I see him please,Mrs. Williams?
我可以看看他吗，威廉斯夫人？