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该体系的重点内容包括：1。建立开放式的师生关系。
The important contents of this system include: 1. Building the open type teacher-student relations.
youdao
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开放式系列包括光强度的雪茄。
The Open series comprises light strength cigars.
youdao
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开放式系列包括光强度的雪茄。
The Open series comprises light strength cigars.
youdao