The knife fell from her nerveless fingers.

刀从她无力的手里落下。

She is a nerveless rider.

她是一位勇敢的骑手。

The knife fell from his nerveless hand.

那把刀从他无力的手中落下。

Joe's pipe dropped from his nerveless fingers.

乔的烟斗接着也掉了。

A weak, nerveless fool, devoid of energy and promptitude.

一个衰弱，软弱无力的笨蛋，缺乏敏捷的活力。