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Are you familiar with the many educational and training materials available?
是否熟悉现有的教育和培训材料？
youdao
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Teaching materials are the main carrier to achieve educational aim.
教材是实现教育目的的主要载体。
youdao
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Teaching materials are the main carrier to achieve educational aim.
教材是实现教育目的的主要载体。
youdao