跟我做，弯曲你的膝盖。
如果你想让飞行员知道降落是安全的，把你的手伸到前面并弯曲你的膝盖。
If you want the pilot to know that it's safe to land, push your hands out in front of you and bend your knees.
慢慢的弯曲你的膝盖直到你的脚板指向天花板。
Slowly bend your knees until your feet point toward the ceiling.
反之，你应该做“短弧”练习，你只能如图示程度弯曲你的膝盖。
Instead, you should perform "short-arc" exercises where you only bend your knees to the degree shown in these pictures.
弯曲你的膝盖以及你的后腿膝盖向地面方向弯曲，保持前脚踝触地，以及膝盖在脚中心的正上方。
Bend your knees and lower your back knee towards the floor, keeping the front heel down and the knee directly over the centre of the foot.
因为力量源自地面，弯曲你的膝盖能让你的身体处于一个更易通过躯干，髋和肩部转动获得能量的绝佳位置。
Because force is generated with help from the ground, bending your knees places your body in better position to produce trunk, hip, and shoulder rotation.
有节制地使用它，并应用到你的身体的所谓脉冲点：手腕，你的耳朵后面，在你的肘部弯曲你的膝盖后面和你的脚踝内。
Use it sparingly and apply it to your body's so called pulse points: wrists, behind your ears, in the bend of your elbow, behind your knees and on the inside of your ankles.
这也就是说你的脖子和脊柱应该处于中正的位置，肩膀和躯干放松，膝盖弯曲呈90度角，双脚平放在地面上。
This means your neck and spine should be in a neutral position, shoulders and torso relaxed, knees bent at 90 degrees with both feet flat on the floor.
让你的男伴躺下，一条腿伸向一旁，另一条腿弯曲，膝盖朝上。
Your guy lies on his back, one leg outstretched and the other bent, knee pointing upward.
让一个朋友对着你的膝盖弯曲你的脚。
Have a friend flex your foot, bending it down toward your knee.
然后，右侧膝盖弯曲90度，但是要小心点，要确保你的膝盖在脚踝以上，不能再往下了。
Then, bend your right knee 90 degrees, but be careful and make sure you keep your knee over your ankle, and not any further.
从侧面可以看得更清楚。你看，他膝盖的弯曲并不大。
From the side you can see it better. See there is not a whole lot of knees bend.
最好把你的膝盖稍微弯曲，双手自然放在身体两侧。
It is best to keep your knees slightly bent and your arms hanging loosely at the sides.
在你的背部弯得很低的情况下，请小心保持你的膝盖弯曲。
Please be careful and keep your knees bend if you have lower back condition.
正确的踢腿动作中你的膝盖不能太弯，但是膝盖是会有所弯曲的，特别是在向下踢腿时。
Proper kicking you don't bend your knees too much, but there is a knee-bent particularly on the down beat.
稍微弯曲膝盖，然后让支持你的检举在脚踝在下巴。
Bend your knee slightly and then let the spotter support you at the ankles during the chin up.
这时爸爸严肃的对我说： ：“你滑的时候腿和腰要弯曲，膝盖向前弯曲，身体与地面成45度角。
Then father seriously said to me: "you slide the legs and waist will bend, knee bend forward, the body into a 45 degree Angle with the ground."
这时爸爸严肃的对我说： ：“你滑的时候腿和腰要弯曲，膝盖向前弯曲，身体与地面成45度角。
Then father seriously said to me: "you slide the legs and waist will bend, knee bend forward, the body into a 45 degree Angle with the ground."
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