Last year 600 inmates rioted, starting fires and building barricades.去年，600名犯人闹事，他们纵火并设置路障。Gangs rioted last night, breaking storefront windows and hurling rocks and bottles.几个帮派昨晚聚众闹事，他们打碎商店临街的玻璃窗，并投掷石块和瓶子。The prisoners...

riot的现在完成时为：rioted...

n.（圣经）出卖耶稣的犹太之姓，叛徒...