The publishing of examinations-related study materials and the training programs offered, both online and offline, have combined to form a sizable industry.
与考试相关的学习材料的出版，以及网上和网下所提供的培训课程，一起构成了一个规模可观的产业。
The publishing of examinations-related study materials and the training programs offered, both online and offline, have combined to form a sizable industry.
与考试相关的学习材料的出版，以及网上和网下所提供的培训课程，一起构成了一个规模可观的产业。
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