C14
[医] 碳14, 放射性同位素碳(原子量14)
🗣️ 情景例句
How fresh are these vegetables?
这些蔬菜有多新鲜？
I don't know the answer, but let me ask Mr. Chen to comment on that.
我不知道答案，让我问一下陈先生看他有什么看法。
These friendly dogs, which were first brought from Asia, were used as watchdogs even in Roman times.
那些最先从亚洲引进的狗，待人友好，早在罗马时代就给人当看门狗了。