However, there is a third factor: a question of touch.
然而，还有第三个因素：触觉问题。
Third: to do personalized products, don't touch the standard.
第三：要做个性化商品，不要触碰标准品。
The second is water transfer, the third is to touch the balloon.
第二是传水，第三是碰气球。
The second is water transfer, the third is to touch the balloon.
第二是传水，第三是碰气球。
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