Butenyl
丁烯基
🗣️ 情景例句
I'm off today.
我今天休假。
The staff in this shop is very helpful.
这家商店的店员很热心。
No, more, about 130 years ago. Most of the slave owners were rich farmers who lived in the south. They wanted to keep their slaves.
不，还要早，大约130年前。大多数奴隶主都是住在南方的富有的农场主。他们想保留自己的奴隶。