C13
[医] 碳13, 天然同位素碳(原子量13)
🗣️ 情景例句
You're writing a book?
你在写一本书吗?
Mother's apple pie always tastes delicious.
妈妈做的苹果派很好吃的！
Beyond all questions you are right.
毫无疑问，你是对的。