- 問題詳情: LiDaiyuandhercousinLiuQianwereonatriptoCanadatovisittheircousinsontheAtlanticcoast.Ratherthantaketheplanealltheway,they 66 (plan)toflytoVancouverandthentakethetrainfromwesttoeastacrossCanada.Thethoughtthattheycouldcrossthewholecontinent...
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