C14
[医] 碳14, 放射性同位素碳(原子量14)
🗣️ 情景例句
It's good to see you so happy.
能看见你如此高兴 ，太好了。
But it looks like that's out of the question.
但现在看起来不太可能。
What's the deadline?
截止到什么时候？