by leg的意思|示意

Now scientists say that by separating our heads from our bodies, the neck gave our brains a leg up in evolution.

现在科学家宣称脖子通过将我们的头部从躯干上分离开，给大脑的进化助了一臂之力。

One site I came across used the analogy of a baby trying stand up by himself, hanging onto a table leg, and can't stand up.

我在无意浏览到的一个网站上看到过这样一个类比，我们就像一个试图自己站起来的婴儿，扶着桌腿，却站不起来。

You may or may not be aware of waking during the night, but restless leg syndrome causes sleep problems by preventing deep, restful sleep.

在白天醒来的时候你可能会意识到，也可能意识不到这种现象，但是通过妨碍你进入深层的安稳的睡眠，不宁腿综合症会引发睡眠问题。

His leg was lacerated by the tiger's claws.

他的腿被老虎的爪子撕破。

He is a soldier disabled by leg wounds.

他是一名腿部受伤致残士兵。

The leg action of the breaststroke may have originated by imitating the swimming action of frogs.

蛙泳的腿部动作可能是模仿青蛙的游泳动作而来。