Fenchone
葑酮, 1, 3, 3-三甲基-1, 4-桥亚甲基-2-环己酮
🗣️ 情景例句
I really appreciate it.
我真的很感激。
It's hard to say.
难说。
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。