Dimethylnitrosamine
n. [化]二甲基亚硝胺
🗣️ 情景例句
You had something on your mind
你显然有话要说
I know the boy whose father is a policeman.
我知道那个男孩的父亲是警察。
The children compete against each other to reach the other end of the pool.
孩子们比赛看谁先到达游泳池的另一端。