哨兵的英文：
sentinel

The sentries are liable to fall asleep.
这哨兵易于睡着。

The sentry is on guard.
那哨兵在站岗。

The sentry alarmed the sleeping men.
哨兵向熟睡的士兵报警。

The sentry flagged the motorcycle down
哨兵打旗语示意摩托车停下来。

The post or period of duty of a guard,sentinel,or watcher.
放哨，站岗警卫、哨兵或观望哨的责任岗位或时段

Still it appeared as though they were stationed at equal distances from one another, like sentinels
可是，他似乎觉得每隔一段的距离就站着一个人，象哨兵似的。

The sentinel was stationed on a hill.
哨兵被派在山上站岗。

The lone sentinel walked toward his post.
哨兵独自走向岗哨。

To act as a sentinel.
担当哨兵的工作

He placed sentries round the camp.
他在营房周围安置哨兵。

Sentinels were placed at all the approaches to the farm.
在去农场的所有路上都布置了哨兵。

The Press is a sentinel of(ie guards or protects)our liberty.
新闻界是捍卫我们自由的卫士.

One who protects,keeps watch,or acts as a sentinel.
警卫象哨兵一样工作的人，守护，看守的人

A lady in full feather approached the sentinel on the sward
一个衣着华丽的女人走近了草地上的哨兵。

cried the sentinel, who was less abstracted, and who saw by the lamp-light a shadow approaching his chief.
哨兵可不象他的首领那样出神，他在灯光之下看到一个人影向他的首领走过去，就吆喝起来。