哨兵

The lone sentinel walked toward his post.

忧愁的走向岗。

The sentinel was stationed on a hill.

被派山上站岗。

We were guarded by sentries against surprise attack.

我守卫, 以免遭受突袭。

We posted sentries at the gates of the camp.

我军营的大门口布置。

The sentry guard dived into his foxhole and closely observed the stranger towards him.

"跳入了散坑,密切注视着陌生人向他走来。"

The sentry is on guard.

那担任警戒。