Hexyloxy
己氧基
🗣️ 情景例句
What kind of guarantee do you offer?
这种车有售后服务保证吗？
No. I'm going this way. Hope I can see you sometime again.
不，我要走这一条路。但愿有朝一日能在相见。
They also have the disadvantage of being an expensive form of transport.
飞机另一个缺点是昂贵。