Hydroisomerizing
加氢异构
🗣️ 情景例句
and my friends don't want to go.
我的朋友们又不想去。
I wish I could, but it's already late.
我是想多呆一会儿，但是时间已经很晚了。
the varieties are infinite; but two classes may be roughly seen.
鸟的飞行方式千差万别，但大体上可分为两类。