2 not on something, or removed from something 不在〔某物〕上面(的);从〔某物〕上移开(的) Keep off the grass. 勿踩草坪。
As he leaned forward, his hat fell off. 他俯身时帽子掉了。
Someone had taken the mirror off the wall. 有人把镜子从墙上取下来了。
Take your coat off. 把你的外衣脱下来。
I was trying to scrape the mud off my boots. 我在想办法把靴子上的泥刮掉。
Don’t say ‘off of’ something. Say
off something
: She fell off her chair (NOT off of her chair).不要说 ‘off of’ something. 而要说 off something: She fell off her chair (不说 off of her chair). 她从椅子上摔下来了。