相比之下，我们去年签发给中国公民前往美国进行商务活动、旅游和学习的签证达到了15.9205万张。
In contrast, last year we issued over 159,000 visas to Chinese citizens traveling to the United States for business, tourism and to study.
下面老师换了一个句子, 练习用 should not 也就是 shouldn't 作反问句, 说明鲍勃去中国应该有护照和旅游签证等等. 请你跟刚才一样作练习.
对任何一个旅行者来说，不受签证费用和麻烦缠身的出国旅游是受欢迎的好东西。
The ability to visit a foreign country without the cost and hassle of obtaining a visa is a welcome bonus for any traveller.
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