Neohexene
新已烯, 二甲基丁烯
🗣️ 情景例句
Well, here's a twenty.
嗯 ，这是二十美元。
New lords, new laws.
新官新法。
It is no use inviting the politician or the professional or business man,
同样也是无益的，对于政界人士、专业技术人员、商人来说，