C13
[医] 碳13, 天然同位素碳(原子量13)
🗣️ 情景例句
Oh, thank you.
哦，谢谢。
What are you after?
你追求什么？
I opened the cupboard door and then stood in front of it petrified.
我打开柜门，站在柜门前一下惊呆了。