vitals

['vɑitlz]

n. 重要器官, 要害命脉

例句与用法：

The leader's vital and cheerful manner filled his men with courage.

指挥官朝气蓬勃和欢欣愉悦的神态使士兵们勇气倍增。

The first thing to be done was to head off the enemy from the tender spots and vital places.

首先要做的事是防止敌人从防守不严的部位及要害地方逃走。