Besides these, it is essential to find a proper position for advertisements which is classification.

除了这些，为广告寻找合适的位置也是必要的，这就是分类。

youdao

Besides these, it is essential to find a proper position for advertisements which is classification.

除了这些，为广告寻找合适的位置也是必要的，这就是分类。

youdao