Most critters bounce on the balls of their feet, think cats and dogs, while others trot on their toes, like horses and deer.
但是多数家畜用脚掌弹跳，想想猫跟狗，然而其他动物是用脚趾小跑，比如马跟鹿。
Start as shown with the arms extended, back flat, legs fully extended and the balls of the feet on the Swiss ball.
开始动作如图所示：两臂伸直，背部保持平直，两腿充分蹬伸，脚掌置于健身球的球体之上。
He'd been a fencing champion at Harvard and he fluttered around on the balls of his feet, like a man who was superior to anyone else in the room.
在哈佛时他是击剑冠军，现在他走路时还总是垫着脚尖，翩然而过，似乎比房间中的任何人都要来得高贵。
But most critters bounce on the balls of their feet-think cats and dogs-while others trot on their toes, like horses and deer.
但是多数家畜用脚掌弹跳——想想：猫、狗——其他动物是用脚趾小跑，比如马，鹿。
This form allows for a more comfortable squatting position. The weight is more centered on the heels rather than the balls of your feet and knees, giving more support.
这种蹲姿较为舒适，整个身体的重量不是集中在脚尖和膝盖，而是集中在后脚跟，给了身体更多支撑力。
Draw your navel to your spine and keep your weight even on the balls of your feet and your heels.
收腹(让肚脐靠向脊柱)，并使重心平均分布于脚掌和脚跟上。
Challenge yourself by standing with the arches of your feet on the balance balls, and making golf swings.
通过站在平衡球上击球来挑战你自己。
Though his voice showed no strain, he could be seen rising on the balls of his feet in recital, using every sinew and nerve to produce the sound.
（译注：意为“邪恶之眼”）。尽管他的声音没有显出起伏，但在朗诵的时候，经常会看到他踮着脚，用每块肌肉和神经来发声。
Lift and spread your toes and the balls of your feet, then lay them softly down on the floor.
抬起并伸展脚趾和脚球，并把它们轻轻地压向地板。
Ballistic Propulsion Plate to help keep players on the balls of their feet during play.
弹道推进板，以帮助保持对他们的脚球的球员，在播放过程中。
Though his voice showed no strain, he could be seen rising on the balls of his feet in recital, using every sinew and nerve to produce the sound.
虽然他的声音并未显得紧张，但是能看到他在演唱会上risingon the balls ofhisfeet，用尽体力和精力去唱出声音。
Though his voice showed no strain, he could be seen rising on the balls of his feet in recital, using every sinew and nerve to produce the sound.
虽然他的声音并未显得紧张，但是能看到他在演唱会上risingon the balls ofhisfeet，用尽体力和精力去唱出声音。
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