一些知名旅游网的数据显示，今年国庆的出境游长线旅游产品预订量比去年同期翻了一倍。
The data of some well-known tourism websites showed that the number of bookings for outbound tourism were double the same period last year.
必须采取适当的措施限制外国旅游者的数 量，努力保护当地环境和历史不受国际旅 游业的不利影响。 游业的不利影响。
Proper measures must be taken to limit the number of foreign tourists and great efforts should be made to protect local environment and history from the harmful effects of international tourism.
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