1.in time及时,还早;总有一天;终于on time按时,准时
A stich in time save time.
If you keep on, you will succeed in time.
We were just in time for the bus.
The train came on time.
You are requested to come on time.
2.in camera秘密地,私下地
on camera出现在电视上
The case wa tried in camera.
Did you watch the football game on camera?
3. in the air 在空中;无隐蔽的,不完的
on the air(正在)广播
4. in the way妨碍
on the way在路上
5.in the field 在田野上,野外的;参加比赛
on the field在战场上
6.in hand在进行中,在手头,在控制中
on hand现有,可用
7. in behalf of为......之利益
on behalf of 代表,为了
8.in the corner 在拐角内
on the corner在拐角之上
at the corner在拐角处外
9.in the road 在道路上
onthe road在途中
10.in view望,在看见的地方,被考虑;被期待
on view展示陈列着
11. in the east of 在东部(范围内)
on the east of在东面(相邻、接壤)
to the east of 在东边(在范围之外)