Ursol
对苯二胺
🗣️ 情景例句
We started by making safety equipment for many sports.
我们是以做运动产品的安全器材起家的。
Liberty often degenerates into lawlessness.
自由随便，经常堕落到无法无天。
There was a murder in London yesterday.
昨天伦敦发生了一起谋杀案。