C13
[医] 碳13, 天然同位素碳(原子量13)
🗣️ 情景例句
Without a doubt, things will get worse.
情况无疑会越来越糟。
If you have more, please give me some.
如果你有多的，请给我。
I think it's under the table.
我想可能在桌子底下。