at fault 有错, 有责任
i am quite at fault. 我完全错了.
The bloodhounds were at fault by overrunning the line. 由于跑过了路线,猎狗失去了猎物的嗅迹.
The court held that the defendant was at fault. 法庭宣判被告有罪
Which driver was at fault in the car crash? 这次撞车事故是哪一个司机的过错?
Don't look at me like that; it wasn't my fault!别那样瞧着我,这不是我的错!