traveling class mark

例句：

1. 1. I've been traveling around Europe for thepast few weeks.
   我过去几周一直在欧洲旅行。
2. 2. The company is planning a tour topromote its products.
   该公司计划一次旅游来推广其产品。
3. 3. He decided to take avacation and travel to Japan.
   他决定去度假，并去日本旅行。