The squat to bicep curl USES weights and mimics the action of lifting a laundry basket, laptop bag or young child from the floor.
下蹲屈臂用到了哑铃，模仿了从地上拎干洗篮、电脑包或小孩的动作。
With every step you take on a treadmill and with every bicep curl, you turn surplus calories into motion that could drive a generator and produce electricity.
你所走的每一步都是在脚踏车上withevery bicep cur，你转化剩余的卡路里为转动，它能驱动一个发电机并产生电力。
In eccentric contraction, the muscle produces a force while it's being lengthened. This happens when a person runs downhill, for example, or lowers a weight during a bicep curl.
离心收缩时，肌肉伸长产生一种力，例如当一个人奔走下坡，或者二头肌训练时会发生。
“The bicep alone—and this is a conservative estimate—could curl 430 pounds, ” Conrad says.
保守估计，霸王龙的二头肌有430磅的曲力。
"The bicep alone-and this is a conservative estimate-could curl 430 pounds," Conrad says.
保守估计，霸王龙的二头肌有430磅的曲力。
"The bicep alone-and this is a conservative estimate-could curl 430 pounds," Conrad says.
保守估计，霸王龙的二头肌有430磅的曲力。
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