四个数复试3中3几组简介：This is also a pei. The little old man named it a foot pei. There is a pedal here. As long as you step on it, you can pound rice. It takes less effort than using your hands, and you don't have to bend down and get hurt.
This is also a pei. The little old man named it a foot pei. There is a pedal here. As long as you step on it, you can pound rice. It takes less effort than using your hands, and you don't have to bend down and get hurt.
