idiolalia

例句：

1. 1.Idiots are the ones who think they're smarter than everyone else.
   愚蠢的人认为自己比其他人更聪明。
2. 2.The idiot bought a car that broke down every time he drove it.
   这个白痴买的车每次开动都出故障。
3. 3.He was an idiot for not listening to his friend's advice.
   他不听朋友的建议是个白痴。