off可作副词、介词、形容词、名词和动词，含义有离开、从……去掉、不礼貌、不行、起跑、杀死等；on可作介词和副词，含义有在……上、向前、穿在身上等。
扩展资料
一、off的中文含义及用法介绍
off可作副词、介词、形容词、名词和动词，基本含义有离开；从……落下；不行，冷淡；起跑；杀死某人。例句有：
1、I called him but he ran off.
我喊他，可他跑开了。
2、I fell of the ladder.
我从梯子上跌了下来。
3、This fish has gone off.
这条鱼已变质了。
4、They're ready for the off.
他们准备起跑了。
5、She took her eyes off the road to glance at me
她把视线从公路上移开，扫了我一眼。
6、Their natural predators have been killed off
它们的`天敌被全部杀死。
7、The ball skewed off at a right angle.
球呈直角偏离弹了出去。
二、on的中文含义及用法介绍
on可作介词和副词，含义有在……上、由……支撑；向前、穿在身上、戴着。例句有：
1、There's a mark on your skirt.
你裙子上有一块斑。
2、She was standing on one foot.
她单脚站立着。
3、He was on the plane from New York.
他在纽约来的飞机上。
4、He came on Sunday.
他是星期天来的。
5、Have you got any money on you?
你带钱了没有？
6、He worked on without a break.
他毫不停歇地继续工作。
7、I didn't have my glasses on.
我没戴眼镜。
8、Make sure the lid is on.
要注意盖上盖子。
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