在这之后，另一个在她们学院工作的教授周立，来到明尼苏达并在这里做了一个月的研究。
After that, the other professor Zhou Li, also in Yan's school, came to Minnesota and did one month of research here.
EdX拥有55名员工，用户遍及192个国家，到今年5月成立一周年的时候，注册学生预计将达100万人。
EdX, which has 55 staff and users in 192 countries, expects to reach 1m students by its first anniversary in May.
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