例句：
Did you have a chance to do any sightseeing ?
你有没有出去游览的机会？
Sightseeing is best done either by tour bus or by bicycles.
观光最好要么乘游览巴士，要么骑自行车。
A sightseeing tour of the city is included to help you get your bearings.
城市观光游包括在内，以帮助你们弄清方向。
