C13
[医] 碳13, 天然同位素碳(原子量13)
🗣️ 情景例句
But it's not going to be easy.
不过这事可不容易。
He who fears to suffer, suffers from fear.
怕吃苦头的反因怕而吃苦头。
Have you taken his temperature?
你给他量过体温吗？