The astronauts made three trips in the lunar rover to take pictures and collect rocks.

VOA: special.2009.07.29

When King Abdullah became King of Saudi Arabia in 2005, he took four trips, one to the United States, the other three were to China, India and Malaysia.

阿卜杜拉2005年加冕沙特阿拉伯国王时，他访问了四个国家，他访问了美国，还访问了其他三个国家，中国，印度和马来西亚。

普林斯顿公开课 - 国际座谈会课程节选

These trips last from one week to three weeks.

VOA: special.2009.10.07