Diolefin
n. [化]二烯
🗣️ 情景例句
Stay on that road, and you'll cross a blue bridge.
沿着路开下去 ，你会经过一座蓝色的桥。
Take care of the pence and the pounds will take care of themselves.
积少成多。
She teaches foreign students Chinese.
她教外国学生汉语。