我的膝盖一弯就疼。
Bend the supporting knee during these transitions.
在这些体式变换时弯曲支撑腿的膝盖。
Bend the right knee and place the sole into the inside of the supporting leg.
屈右膝，脚掌抵在支撑腿内侧。
You might hear a crunching or clicking sound when you bend or extend your knee.
当你弯曲或伸展膝盖的时候可以听见卡吧喀吧的响声。
Bend at the knee when you ski downhill.
你从山上往下滑雪时，要屈着膝。
You want to keep your kick tight and small with slight knee bend.
你要做到的是双膝微曲的紧张踢腿。
Bend one knee up and keep the other extended.
弯曲一个膝盖，而让另一个膝盖伸展。
Bend your left knee and raise the shin approximately perpendicular to the floor.
弯曲左腿，小腿向上近乎垂直地面。
Bend your left knee and raise the shin approximately perpendicular to the floor.
弯曲左腿，小腿向上近乎垂直地面。
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