Guide-link is a starting link for a class and a one of four important links all the more.

导入环节是一堂课的起始环节，更是四个环节中的重要环节之一。

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Guide-link is a starting link for a class and a one of four important links all the more.

导入环节是一堂课的起始环节，更是四个环节中的重要环节之一。

youdao