Proponents of such opinions were arrested as'traitors.'是什么意思？

Proponents of such opinions were arrested as'traitors.'

提倡这种主张的人马上作为“卖国贼 ” 逮捕起来.

proponents

n. （某事业、理论等的）支持者，拥护者( proponent的名词复数 )；

例句
Reviewing courts were among the most active proponents of hybrid rulemaking procedures.
复审法院是最积极的混合型规则制定程序的建议者.

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。

such

det. 这样的，那样的，如此，这样；

例句
...abstract principles such as justice...
正义等抽象原则

opinions

n. 意见( opinion的名词复数 )，评价，舆论，（专家、医生、律师等的）专门意见；

例句
All too often it is only the negative images of Ireland that are portrayed, colouring opinions and hiding the true nature of the country...
媒体往往描绘的只是爱尔兰的负面形象，影响了大家的看法，掩盖了这个国家的真实面貌。

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。

arrested

v. 逮捕( arrest的过去式和过去分词 )，拘捕，制止，阻止；

例句
His accomplice was arrested after a high-speed police chase.
经过警方的一番飞车追逐，他的同伙遭到逮捕。

traitors

n. 卖国贼( traitor的名词复数 )，叛徒，背叛者，背信弃义的人；

例句
...rumours that there were traitors among us who were sending messages to the enemy.
关于我们中间有叛徒向敌人通风报信的传言