Binaphthol
联萘酚
🗣️ 情景例句
What is language for?
语言到底是用来干什么的？
Honesty may be dear bought,but can never be an ill pennyworth.
高价买诚实，永远也值得。
He started to complain about this wicked world but was interrupted by a knock at the door.
他开始抱怨起这个邪恶的世道来，却被一阵敲门声打断了。