Once the grasp of this technique, you can leave the chair, free training.

一旦把握了这个技巧，就可以离开椅子，自由的训练。

youdao

Once the grasp of this technique, you can leave the chair, free training.

一旦把握了这个技巧，就可以离开椅子，自由的训练。

youdao