blackguard

n.流氓

无赖；卑鄙小人

名词

1. He was often seen in the company of blackguards and troublemakers.
他常常与无赖和捣乱者为伍。
2. I won't tolerate such blackguard behavior in my house.
我不会容忍这种卑鄙无耻的行为发生在我的家里。