- 問題詳情:WangLanandWangJingarestudentsfromShanghai.Theyaresisters.Theyarelookingforanewplacetolivein.Theyneedtocatchbusesandtrainseveryday.WangLanis24yearsold,andsheisstudyingcomputerscience.ShegoestouniversityeveryweekdayandsometimesonSaturdays.Sheus...
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