The Sightseer参观者
tourist visitor visitors sightseer游客
Sightseer Lounge Car观景车厢
同义词：excursionisttripperrubberneck
N-COUNT（可数名词） A sightseer is someone who is travelling around visiting the interesting places that tourists usually visit. 观光客
...busloads of sightseers.
...几车厢的观光旅客。