帮我介绍一下on time和in time的用法

题目

帮我介绍一下on time和in time的用法

答案

in time 及时,不迟
例句 Will I be in time to catch the train.
我赶得上火车吗?
on time 按时,准时
例句 The train arrived on time.
火车正点到达.