inanothertime下一次 　　Canyousuggestanothertimeinwhichwecangooutforawalk=Canyousuggestanothertimewhichwecangooutforawalkin 　　wecangooutforawalk是定语从句用来限定anothertime的,因为从句中缺介词in的介宾,所以需要引导从句的关系代词.当先行词是物时,用that或which,但that不能用于借此之后.