- 问题详情:Withoutproperplanning,tourism(旅游业)cancauseproblems.Forexample,toomanytouristscancrowdpublicplacesthatarealsoenjoyedbythelocalpeopleofacountry.Iftouristscreatetoomuchtraffic,thelocalpeoplebecomeunhappy.Theybegintodisliketouristsandtotreatthe...
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