Dmba
abbr. dimethylbenzanthracene 二甲基苯蒽
??? 情景例句
The only-child generation brings about many new social problems.
獨生子女一代帶來了許多新的社會問題。
The remedy is worse than the disease.
醫療不得法，使病更糟糕。
'I must be at work at 10 o'clock.
“我必須在10點鐘上班，我的雇主會證明我是按時到了那兒的。