The consciousness never instructs him how to open the mouth, to stretch muscle, and to beam in eyes.

意识当时并没有告诉他，嘴应该怎么张，肌肉应该怎么拉，眼神应该怎么放出光芒。

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Quadriceps Stretch: the quadriceps is the muscle in the front of the thigh, important for lifting your knees and increasing your speed.

拉伸股四头肌：股四头肌是大腿前侧的肌肉，对于你提升膝盖和提高速度很重要。

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If you feel any muscle tightness while you're warming up, stop jogging for a moment and stretch out the tight area (but don't count this stretching time as part of your 10-minute minimum).

如果热身时候感到任何肌肉紧张，停止慢跑，拉伸一下紧张的部位(但是不要把拉伸时间算到你的10分钟里面去)。

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Over the next few months, the expander is injected with saline regularly to stretch the muscle.

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The Darpa-supported team instead moved their machine by using an "artificial muscle" made out of nickel and titanium wire designed to stretch and contract with heat.

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