Be on a business trip：在出差

Go on a business trip：去出差

双语例句：

Are you here on a business trip?

你是出差来这儿的吗?

He’s on a business trip in Hong Kong.

他在香港出差。

My husband has gone on a business trip.

我丈夫出差了。

I hate business trips; I’m going on another business trip next week.

我讨厌出差，下个星期又要出差了。

Be on a trip: 在旅行当中

go on a trip: 去旅行

双语例句：

I’m on a trip this week; may I visit you when I get back to Chengdu?

这周我在旅行当中，当我回到成都后去拜访你，好吗?

We are planning to go on a trip.

我们正在计划出游。