Precarcinogen
n. [生化]前致癌物
🗣️ 情景例句
How much extra do I have to pay for that?
我还要另外付多少？
I invited him last Thursday.
我上个星期四邀请他。
Workers will have completed the new roads by the end of this year.
工人们将在今年年底前把新路铺好；