C14
[医] 碳14, 放射性同位素碳(原子量14)
🗣️ 情景例句
We have a wide connection in U.S.A.
我们在美国各地有广泛业务关系。
I cannot afford two days off a week.
我忙得无法一星期抽出两天休假。
I'll leave them for you to look over.
我会留下来给你慢慢的看。