China has been the world's largest outbound tourism market since 2012.

中国自2012年以来一直是世界上最大的出境旅游市场。

One market in which guidebooks have struggled is China, the world's biggest spender on outbound tourism.

旅行指南书一直生意惨淡的一个市场是中国，中国是世界上最大的出境旅游消费国。

Outbound tourism increased 7% last year, with spending amounting to $14.5 billion.

去年出境旅游增长了 7%，支出达 145 亿美元。