一枚手榴弹掷向了陆军巡逻队。用英语怎么说？

一枚手榴弹掷向了陆军巡逻队。

A hand grenade was thrown at an army patrol.

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。

grenade

n. <军>手榴弹，催泪弹，灭火弹；

例句
A hand grenade was thrown at an army patrol.
一枚手榴弹掷向了陆军巡逻队。

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

thrown

v. 投( throw的过去分词 )，掷，扔，抛；

例句
She was trying to behave as if his visit hadn't thrown her off balance.
她尽力装作对他的造访并不吃惊。

at

prep. （表示位置）在，在（某时间或时刻），以，达， 向，朝；n. 阿特（老挝辅币单位，100 阿特 = 1 基普）；

例句
Prices start at £13.95 a metre for printed cotton...
印花棉布以每米13.95英镑的价格起售。

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；

例句
He started eating an apple...
他开始吃苹果。

army

n. 军队，陆军，团体，野战军；

例句
The army refused to accept orders from the political leadership...
军队拒绝接受政界领导层下达的命令。

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。