keep your knees straight的意思|示意
美 / /
英 / /
保持膝盖伸直
keep your knees straight的网络常见释义
伸直膝盖 ... Look downward=向下看 keep your knees straight=伸直膝盖 Supine=仰卧 ...
keep your knees straight相关例句
Bent your knees, but keep your back straight.
屈膝，保持背部挺直。
Set your feet shoulder-width apart, and keep your knees slightly bent, back straight, and eyes focused straight ahead.
双脚与肩同宽，保持膝部稍弯，后背挺直，双眼注视前方。