be late的三种用法

be late for 因……而迟到

Never be late for an appointment.

永远不要约会迟到。

be late in doing something ( 因为某事)晚了

be late in something (某事)晚了

I'll be late — something's cropped up in the office.

我会晚来一会儿，因为办公室里发生了一些意外。