nerve

n. 神经(生物)，精神,勇气,叶脉
v. 鼓起勇气

You'll need plenty of nerve to sit beside him when he is driving.

他开车的时候，你得有足够的胆量才敢坐在他旁边。

His wife has a fit of nerves again this morning.

今天早晨他的妻子又发了一通神经。