To mass murder is to murder a large amount of people at the same time. 大屠殺指的是在同一時間屠殺大量的人。
He was infamous for his cruelty and for the mass executions of his real or perceived enemies by impaling them on sharpened wooden poles. 他因其殘忍和大屠殺而臭名昭著,他將他的實際的敵人和潛在的敵人集體釘死在銳木樁上。