They were beaten to death with baseball bats.是什么意思？

They were beaten to death with baseball bats.

他们被人用棒球棒打死了。

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

beaten

adj. 被打败的，锤薄的，耗损的，常走的，筋疲力尽的；v. （心脏等）跳动( beat的过去分词)，击打，（风、雨等）吹打；

例句
England have beaten the Welsh three times in succession with an aggregate score of 83-12.
英格兰队已经连续3次打败威尔士队，总比分为83比12。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

death

n. 死亡，（某种）死法，死亡方式，病危，死神；

例句
The following year Parliament voted to abolish the death penalty for murder...
议会于翌年表决对谋杀罪废除死刑。

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。

baseball

n. 棒球，[体]棒球运动；

例句
Two boys were in the street, tossing a baseball back and forth.
两个男孩在街上来来回回地投接棒球。

bats

adj. 神经不正常的，怪异的；n. 球棒( bat的名词复数 )，球拍，击球员，蝙蝠；

例句
Prisoners armed with baseball bats used the hostages to hold police at bay.
手持棒球棒的囚犯们挟持了人质，使警察无法靠近。