Guerrillas attacked a patrol with hand grenades.是什么意思？

Guerrillas attacked a patrol with hand grenades.

游击队用手榴弹袭击了巡逻队。

guerrillas

n. 游击队员( guerrilla的名词复数 )；

例句
The guerrillas would fight to the bitter end, he said, in order to achieve their main goal.
他说，游击队员会为实现主要目标而战斗到底。

attacked

v. 攻击，进攻，抨击( attack的过去式和过去分词 )，非难，损害；

例句
He was attacked by wild animals...
他遭到野兽的袭击。

patrol

n. 巡逻，巡查，巡逻队，侦察队，童子军小队；vt.& vi. 巡逻，巡查；

例句
The team police get to know the people in their patrol areas better than cops who must cover a larger beat.
小分队的警察比那些负责大片区域的警察更了解自己管片的群众。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

hand

n. 手，协助，帮助，（工具等的）把，柄，掌管；vt. 传递，交给，搀扶，支持；

例句
His hand brushed against hers; it could have been either accidental or deliberate.
就在有意无意间，他的手轻轻拂过她的手。

grenades

n. <军>手榴弹( grenade的名词复数 )；

例句
In the latest incident at the weekend police fought a gun battle with a gang which used hand grenades against them...
在周末发生的最近一起暴力事件中，警方与向他们投掷手榴弹的一伙匪徒展开了枪战。