Blithering idiot
01
十足的傻瓜, 白痴
a person who is extremely foolish or incompetent
Informal
例子
The teacher struggled to maintain patience with the blithering idiot who could n't grasp even the simplest concepts.
老师努力保持耐心与喋喋不休的白痴，他连最简单的概念都无法掌握。
