Most travel from one developed nation to another, but the flow from developing to developed countries is growing rapidly.
大多数人是从一个发达国家到另一个发达国家旅游，但从发展中国家到发达国家旅游的人数正在迅速增长。
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The U.S. trails far behind every wealthy nation and many developing ones that have family-friendly work policies including paid parental leave, paid sick days and breast-feeding support.
Emerging from the 1980 census is the picture of a nationdeveloping more and more regional competition, as population growth in the Northeast and Midwest reaches a near standstill.