同义词有go touring,go to travel ,go for a travel,go on a journey等,都表示去旅游、观光,例如:
1、Let's go sightseeing in Shanghai sometime.咱们哪天到上海逛逛去吧。
2、Whether we'll go on a sightseeing trip tomorrow will depend on the weather.我们明天是不是出游,得看天气。
3、On second day, we are going to go sightseeing.在第一天,我们打算去观光。