Diolefins
二烯属; 二烯属烃
🗣️ 情景例句
maybe she'll find someone else in the meantime,
她也许会在这段时间找别的人。
He ate it in no time.
他一下子把它吃掉了。
You don't have many apples, Jim, says Li Lei.
“你的苹果不多，吉姆，”李垒说