It may be better if the bent knee opens outward a little.

如果弯曲的膝盖微微向外打开会更好些。

youdao

The bent knee position means that the thighs are working continuously.

滑冰时的屈膝姿势意味着大腿在不停地运动。

youdao

The leg to be stretched should be positioned behind your trunk with your knee bent.

要伸展的那条腿应该放在躯干的后面并弯曲膝盖。

《柯林斯英汉双解大词典》

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