为什么没有一本你可以读懂，然后就能让你出发的25页的指南？

Why is there no 25-pages-manual, something you can read and understand and off you go?

youdao

但你有没有做过不同设计页的测试呢？

But do you test different page designs?

youdao

但你有没有做过不同设计页的测试呢？

But do you test different page designs?

youdao