However, the nature of this very diversity makes travel and tourism ideal vehicles for economic development in a wide variety of countries, regions or communities.
然而，正是这种多样性的性质使旅游业成为许多国家、区域或社区经济发展的理想工具。
But seafarers can be prone to specific illnesses and diseases because of the nature of the work and travel to new countries.
但是，由于特定的工作性质以及船舶在不同国家之间频繁旅行，海员们很容易患上各种特定的疾病。
If you want to major in International Relations, Spanish Literature, or Chinese, for example, summer travel can be both enjoyable and academic in nature (no matter what your parents might think!).
如果你想学国际关系，西班牙文学，或者中文，比如：暑假旅行当然可以，玩和学两不误(不管你父母是怎么认为的)。
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