sightseeing/'saɪtˌsiːɪŋ/

n. the activity of visiting interesting places as a tourist

n. [U] 游览，观光：Do you have time to go sightseeing round the town? 你有时间去镇里观光吗？

◇He did a lot of sightseeing in London last year. 去年他在伦敦游览了好多地方。

构词sight + see + -ing