take a trip和travel的区别

　　We had to make several trips to bring all the equipment over.

　　我们往返了几次才把全部设备运过来。

　　If we go this way it will save us two hours on the trip.

　　如果走这条路，可以缩短两小时的行程。

　　Her sole object in life is to become a travel writer.

　　她人生的唯一目标就是当游记作家。

　　Sound travels better in water than in air.

　　声音在水中比在空气中传播得快。