Precarcinogen
n. [生化]前致癌物
??? 情景例句
If you keep eating you'll be as big as a house.
如果你一直吃下去，你會胖得像棟房子。
May I smoke?
我能抽煙嗎？
Whose is this shirt? Is this yours, Li Lei?
這是誰的襯衫？是你的嗎？李磊？