run-down legs

The messenger boy will run off his legs sooner or later.

这个小通讯员迟早会累垮的。

Like the frilled dragon, it can also rear up on its hind legs and run away.

和褶伞蜥一样，它也是靠后腿弹跳来逃跑的。

Fan continues to run faster as the tatters of his pants fly off his legs.

范继续狂奔,破裤子的布条一片片的飞离他的双腿.

My legs failed me and I wasn't able to run the last lap.

我这腿不争气,最后一圈跑不动了.

The Function of Swaying Legs in Bending Knees and Swaying Highly in the 110-meter Hurdle Race Study on the Teaching and Training of Swinging Legs Skill in Middle-way in Short-distance Run

浅析110m栏起跨技术中摆动腿屈膝高摆的作用及训练方法关于短跑途中跑摆动腿技术教学与训练研究

Rabbit: Running? Haha! You can't run. Your legs are too short!

兔子: 跑步? 哈哈! 你不会跑, 你的腿太短了!

In so many cases, it was patients" bodies that had been grossly violated, and it was their bodies that had failed them-legs had not run quickly enough, arms had not pushed powerfully enough, voices had not screamed loudly enough to evade disaster.

很多病例中，受到严重侵犯的是患者的身体，是他们的身体辜负了他们的期望——腿跑得不够快，手臂抗拒得不够有力，呼救的声音还不够大，以至于他们未能逃脱魔爪。

The legs' supporting angle of sector in the last step of run-up before the take-off has much effect on the drop of body center, horizontal speed and vertical speed in broad jump.

助跑最后一步摆动腿着地时，其小腿支撑扇角对踏板前的身体重心下降、水平速度以及离板瞬间的重心垂直速度有重要影响。