Tickets must be bought seven days in advance, with outward and return journey dates specified.
购票需提前7天,并确定往返日期。
According to a study, the return trip effect is seen even when people take different routes on the outward and return trips.
有研究显示,出行和返回时采取不同的路线时还是会有“返程效应”。
英语网 · 双语新闻
英语网 · 双语娱乐资讯
英语网 · 英语词汇