游牧民族居住在荒原里搭的帐篷中，那里有秀美的湖泊和日益繁荣的旅游业。
Nomads17 live in tents in the wilderness; there are beautiful lakes and a growing tourist industry.
但旅游业是有利有弊的，因为尽管它能繁荣国家经济，海礁却会被破坏。
But tourism is double-edged, for although it's boosting the country's economy, the Reef could be damaged.
南极的旅游业是个繁荣的产业。
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