人类旋转螺丝使其前进，而象鼻虫的肌肉沿着腿的方向牵拉，使其旋转。
Humans turn a screw to make it move along its length, but the weevil's muscles pull along the length of its leg to make it turn.
母亲摔倒时蹭破了一个膝盖，另一条腿也扭伤了，走起来有点跛，为了照顾她的速度，他们开始慢慢的往海滩前进。
They began to jog up the beach, matching their speed to Mother, who was limping a little from having skinned one knee and twisted the other when she fell.
他它们搬运尸体的方式是背上尸体，用腿推动着前进，尸体在它们上方。
And how they move it is they will lay on their backs underneath the carcass and use their legs to push it, kind of over them.
另外一种是分成两个单独的5人圈，两个5人圈交替前进，只要队员腿够粗，对方根本不知道球在那个5人圈里面，防不胜防！
Another is divided into two separate 5 laps, 5 laps of the two alternating forward, as long as the players legs thick enough, the other did not know that the ball inside the circle 5, impossible!
我的滑雪技术并没有多少提高，汗倒是出了很多。因为得用“四条腿”滑雪确实很累。两条腿得拖着滑雪板，两臂得用滑雪杆推动身体前进。
My skill did not improve much but I swattered a lot for I had to walk with "four legs" - dragging ski on foot and pushing forward with posts in hands.
这种无眼的爬行动物虽然看起来像蛇类，但是它确实是生活在地面上，蜥蜴的一种。它的腿在进化中消失，它只能够以摇摆身体的方式推动土壤前进。
The blind reptile looks like a snake, but it is actually a lizard that has evolved to live underground - losing its legs to enable it to push through the soil by wriggling its body.
这种无眼的爬行动物虽然看起来像蛇类，但是它确实是生活在地面上，蜥蜴的一种。它的腿在进化中消失，它只能够以摇摆身体的方式推动土壤前进。
The blind reptile looks like a snake, but it is actually a lizard that has evolved to live underground - losing its legs to enable it to push through the soil by wriggling its body.
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