In a lunge position, place your right foot on a bench or a step at knee height, and place both hands, palms down, on your right knee, keeping your left leg straight.
以弓箭步姿势，将你的右脚放在一个齐膝的长凳或台阶上，双手抚右膝，保持左腿伸直。
2
When he cannot use his eyes to guide his steps, he will walk straight only if he takes a step of the same length with each foot.