肩膀应该放松并松弛下来，不要向上提或者向前弯。
Shoulders should be relaxed and comfortable, not raised or hunched forward.
他使肩膀向前弯。
是的。即使向前弯，我也是摸不到膝盖的，更别说我的脚趾了。
Neil: no. Even if I bend forwards I can hardly touch my knees, and certainly not my toes.
今天，她注意到，敲击燧石时，桑德·加特突然向前弯转他的右手腕。
Today, she notices that Sandgathe snaps his right wrist forward when he strikes the flint.
步行带动腰椎向前弯曲并随左右下肢运动而旋转、侧弯，其主要作用力来自腰大肌。
Walking brought along the lumbar vertebra to bend forward and rotate with the movement of right and left lower limbs. The main force to finish this movement came mainly from musculus psoas major.
得出了叶片周向前弯后， 叶顶部分的附面层减薄，二次流损失减小的结论，与实验结果吻合；
The boundary layer thickness of the forward skewed rotor decreases in the top of blade due to reduction of the secondary flow loss. This fact conforms with experimental investigation.
不管你用哪种方式，移动小腿骨恰到好处地伸直膝盖，不再让膝关节往后弯，但也不要太高以免膝关节向前弯。
Whichever approach you take, move the shinbone just enough to straighten the knee so that it no longer curves back, but not so much that the knee bends forward.
向左向右向前看，爱要拐几个弯才来。
Looking at left, right, and front, love will comes after several turnings.
膝关节微屈站立，双脚与髋同宽，脚尖向前。膝关节在脚尖正上方。身体前弯与地面平行。
Stand with knees bent slightly, feet at hip distance apart, toes forward. Knees should be directly over toes. Bend forward so upper body is parallel to floor.
膝关节微屈站立，双脚与髋同宽，脚尖向前。膝关节在脚尖正上方。身体前弯与地面平行。
Stand with knees bent slightly, feet at hip distance apart, toes forward. Knees should be directly over toes. Bend forward so upper body is parallel to floor.
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