This tutorial applies to all beginners especially suitable for beginners, don "t want to back formula for the elderly, kindergarten children."

本教程适用于一切初学者特别适用于不想背公式的初学者，还适用老年人、幼儿园的小朋友。

youdao

This tutorial applies to all beginners especially suitable for beginners, don "t want to back formula for the elderly, kindergarten children."

本教程适用于一切初学者特别适用于不想背公式的初学者，还适用老年人、幼儿园的小朋友。

youdao