约翰．霍普金斯公共卫生学院的 开放式课程计画提供了学校最热门课程的教材给使用者阅览。
The Johns Hopkins Bloomberg School of Public Health's Opencourseware project provides access to the school's most popular courses.
与此同时，公立学校中最热门的潮流之一就是所谓的双语言或双向浸入式课程。
At the same time, one of the hottest trends in public schooling is what's often called dual-language or two-way immersion programs.
这些特别的课程，使可汗学院成为世界上最热门的在线教育网站之一。
These kinds of special courses make Khan Academy one of the world's most popular online education websites.
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