They were convicted of affray and received community service sentences.是什么意思？

They were convicted of affray and received community service sentences.

他们因殴斗滋事被判决为社区义务服务。

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。

convicted

v. 宣判有罪( convict的过去式 )；

例句
They were convicted of affray and received community service sentences.
他们因殴斗滋事被判决为社区义务服务。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

affray

n. （尤指在公共场所的）吵架，扰乱，打群架，闹事；

例句
Barnstaple crown court was told he caused an affray at a pub in Braunton, Devon...
有人向巴恩斯特珀尔刑事法院告发他在德文郡布朗顿的一家酒馆打架滋事。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

received

adj. 被一般承认的，被认为标准的；v. 收到( receive的过去式和过去分词 )，接到，接纳，接待；

例句
All this equipment has received international acclaim from the specialist hi-fi press.
这套设备受到全球高保真音响专业报刊的赞誉。

community

n. 社区，社会团体，共同体，[生态] 群落；

例句
Your community officer can give you advice on how to prevent crime in your area...
社区工作人员能就如何预防社区内犯罪提供一些忠告。

service

n. 服务，服侍，服务业，维修服务，服役；vt. 检修，维修，向…提供服务，保养，满足需要；adj. 服务性的，耐用的，服现役的；

例句
The major service industries should be accountable to their customers.
主要的服务行业应该对它们的顾客负责。

sentences

n. [律]判决，宣判，句子（ sentence的名词复数 ）；v. 宣判，判决（ sentence的第三人称单数 ）；

例句
Prison sentences have been commuted.
服刑期得以减短。