I'd have given my right arm to have been there with them.

要是当时能跟他们一起去那儿，我宁愿放弃一切。

《牛津词典》

He flung out an arm to stop her from falling.

他猛伸手臂扶她，她才没有跌倒。

《牛津词典》

He raised his arm to try to deflect the blow.

他举起手臂试图挡开这一击。

《牛津词典》

In one activity, children try to get a robot arm to pick up a block and place it in a cup.

VOA: special.2010.07.28

So,as the vaccine was passed from arm to arm, it became less potent, and the length of protection that it would give you varied.

所以当疫苗从一个人传给另一个人之后,它的防治效力会减弱,它带给人的免疫期限也会改变

耶鲁公开课 - 生物医学工程探索课程节选

What this does then is it paralyzes you because your motor neurons-- You send the command to your arm to stand, to lift up.

结果就是它能使你瘫痪,因为你的运动神经元,你想要举起手臂

耶鲁公开课 - 心理学导论课程节选

General Electric will no longer provide financing through its finance arm to gun retailers.

FORBES: Square Stops Gun Sellers From Using Its Payment Technology

Another used what little was left of his right arm to race up a rock-climbing wall.

NPR: Craig DeMartino: Winner in the Extremity Games

His doctors also inserted an intravenous drip in his arm to reduce the chances of infection.

CNN: Sharon undergoes brain scan