cocky
单词辨析：
尤指为让他人羡慕自己而自吹自擂的。
He is boastful of his learning.
他总是夸耀自己的学问。
No one likes to work with him because he always talks in boastful terms.
因为他总是用自夸的言辞讲话，没人愿意和他共事。
指对自己或自身的能力过于自负的，尤含令人讨厌之意。
John is a cocky young man, but his brother is very humble.
约翰是个傲慢自大的年轻人，但是他的哥哥却平易近人。
指人自高自大，认为自己非常聪明、能干、漂亮等。
He is so conceited that he cannot accept the fact that his application failed.
他很自负，因而无法接受申请未能通过的事实。
指认为自己比任何其他人都重要、以自我为中心的。
He has become an egotistical person.
他变成了一个狂妄自大的人。
相关例句：
I just met my new boss. He's so cocky.
我刚去见我的新上司。他是个很骄傲的人。
If I had known it all at age22, I probably would have been a little cocky.
如果我在22岁的时候就能知道这些了，我可能会变得有些骄傲自大。
Tom used to be a very cocky young man.
汤姆过去是个非常傲慢自大的年轻人。
I don't like our monitor; he's far too cocky.
我不喜欢我们班长，他太自大了。
If you're cocky, tell him not to.
如果你是骄傲的，告诉他不到。
Make a little money get cocky, land in jail.
赚了点小钱然后就进监狱了。