There has been modest growth in tourism worldwide despite two years of terrorism, war, and disease, and China is the engine driving it, according to the World Tourism Organization.

世界旅游组织的数据显示，尽管恐怖主义、战争和疾病肆虐了两年，但全球旅游业仍有适度增长，而中国是推动旅游业增长的引擎。

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The World Tourism Organisation predicts that by 2020 some 100m Chinese will be travelling overseas.

世界旅游组织预测：到2020年，将有超过1亿的中国人会走出国门。

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The World Tourism Organisation estimates that by 2020 the number of Chinese tourists will reach 100m.

世界旅游组织估计，到2020年，中国游客的人数将达到1亿人。

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The World Heritage Committee said increased tourism,immigration and invasive species threaten the animals of the Galapagos.

VOA: special.2009.12.16

The world's biggest airline says the new service would strengthen business and tourism between Nigeria and the United States.

VOA: standard.2009.06.13

And Rutherford, like most tourism operators, believes the World Cup will help the economy in the long-term.

VOA: standard.2010.06.03

According to the World Tourism Organisation, there were about one billion international tourists in 2013 .

BBC: How safe is your passport?

The World Tourism Organization predicts that before the end of the decade China will double that.

NEWYORKER: The Grand Tour

The World Tourism Organization (UNWTO) has announced its first extensive and in depth training course on Tourism and Biodiversity.

UNESCO: Call for South East European applications to the Training course on Tourism and Biodiversity | United Nations Educational, Scientific and Cultural Organization