Diolefin
n. [化]二烯
🗣️ 情景例句
Smoking will give you cancer.
吸烟会导致癌症。
She served a flavorous stew to her friends.
她招待朋友香喷喷的炖肉。
It was very dark, so they turned on a torch.
饭厅很暗，于是他们打开了手电筒。