"go on a trip" 是英语中的常用表达，意思是"去旅行"或"进行一次旅行"。它可以用作动词短语，可用于以下几种用法：

1. I want to go on a trip.

(我想去旅行。)

2. We're going on a trip to Europe next month.

(我们下个月要去欧洲旅行。)

3. They went on a trip to the beach during the summer vacation.

(他们在暑假的时候去海滩旅行。)

4. She often goes on trips to different countries for work.

(她经常出差去不同的国家。)