As you roll onto your toes, try to spring off the ground.
当向前翻转至脚趾时,您的脚尽量要弹离地面。
To spring off the ground or other base by a muscular effort of the legs and feet.
跳,跳上通过腿部和双脚肌肉的活动,跳离地面或其它。
What about run-off in the spring, when the snow finally melts?
到了春天,雪最终融化的时候,水流是怎么样的?
The force may taper off, the force may not be given by a straight line, but for modest deformations, every spring will have a linear regime in which the force is linearly proportional to the stretching.
它产生的力可能会渐渐消失,力的曲线可能不是一条直线,而有轻微的弯曲,每个弹簧都有一个线性区间,在这一区间内,力和伸长量是线性关系
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