随着北美、欧洲和亚洲植被的急剧变化，沙漠遍布世界各地。
Deserts spread throughout the world as vegetation shifted drastically in North America, Europe and Asia.
编委会也包括在世界各地（欧洲，北美、南美、非洲、亚洲和大洋洲）这个领域公认的专家和学者。
The Editorial board includes also recognized experts in the subject area and professionals for different world regions (Europe, North and South America, Africa, Asia and Oceania).
报告还提到，去年有623805名来自世界各地的学生在美国学习，其中61%来自亚洲。
Last year, the report said, 623, 805 students from around the world studied in the United States, 61 percent of them from Asia.
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