16人遭斬首
At least 57 prisoners were killed, with 16 beheaded and many more who choked to death in fires during a mass prison riot in Brazil.
巴西近日發生一起監獄大暴動，至少造成57人死亡，其中16人遭斬首，更有多人在大火中窒息而死。
at least 至少behead(v.)斬首choke(v.)(使)窒息、(使)噎住、(使)呼吸困難mass(adj.)大規模的mass media大眾媒體mass demonstrations大規模示威
At around 7 a.m. on Monday morning, a fight broke out between two rival gangs, the Comando Classe A (CCA) and Comando Vermelho (Red Command), at the Altamira Regional Recovery Center in the state of Para, Brazil.
週一早上7點左右，在巴西帕拉州阿塔米拉地方矯治中心，敵對黑幫「A級軍團」（CCA）和「紅軍團」（CV）兩派人馬爆發鬥毆。
fight(n.)(v.)搏鬥、打鬥、打架break out 爆發rival(n.)敵人;對手(adj.)敵對的political rivals政敵gang(n.)幫派gangster(n.)幫派份子
The authorities say prisoners took to the roofs armed with homemade knives.
當局說，囚犯帶著自製刀子佔據屋頂，
the authorities (concerned) (有關)當局armed with…=while they are armed with~帶著…武器
Members of the CCA set fire to a cell where members of the Red Command were kept.
A級軍團成員放火燒了紅軍團成員的牢房。
set fire to sth. 放火燒...=set...on firecell(n.)(監獄)牢房where…=in which…在…裡面
Two prison officers were kidnapped during the conflict, but were later released unharmed.
兩名監獄人員被綁架，但後來毫髮無傷被釋放。
kidnap(v.)(n.)綁架、劫持during(prep.)在…期間conflict(n.)(v.)衝突unharmed(adj.)毫髮無傷=not harmed=not injured=uninjured
The riot was only brought under control after five hours, as the fire kept prison guards from entering parts of the building.
暴動持續五小時後才得到控制，因為火勢使得獄警無法進入牢房內的部分區域。
bring or get sth. under control 控制住…keep sb. from doing sth. 使某人無法...=prevent sb. from doing sth.
Monday’s riot was one of the deadliest in Brazil in decades.
週一發生的暴動是巴西數十年來死亡人數最多的暴動，
deadly(adj.)致命的a deadly virus致命的病毒a deadly weapon武器decade(n.)十年
Hundreds of prisoners are killed in Brazilian jails every year, mostly in conflicts between rival gangs battling for control of cocaine markets and trafficking routes.
在巴西監獄每年有數百名囚犯遭殺害，其中大部分喪生於爭奪古柯鹼市場及走私管道控制權的衝突。
hundreds of~數以百計的;數百名的battle for sth.爭奪=fight for sth.cocaine(n.)古柯鹼traffic(v.)非法交易、販賣人口drug trafficking毒品交易human trafficking人口販運route(n.)路徑;路線