如果你在课程购买中有任何问题，可以通过下面方式联系我们解决
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If you have any problems in the course purchase, you can contact us to solve it through the following methods
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￥优惠劵使用时效：无法使用使用时效：
之前
使用时效：永久有效优惠劵ID：×
如果你在课程购买中有任何问题，可以通过下面方式联系我们解决
客服微信
If you have any problems in the course purchase, you can contact us to solve it through the following methods
之前
