Stereohybridization
立构(规正)杂化作用
🗣️ 情景例句
Thank you.
谢谢。
I asked him to paint it for me, but he wouldn't
我请他帮我油漆，但是他不肯。
At this time, the man downstairs was trying to sleep.
这时楼下人正试图入睡。