pick on sb

今日金句：
I'm not at fault actually, but Why are you always trying to find fault with me? So I beg you to stop picking on me! 
其实我并没犯错呀，为什么你老是找我的茬? 所以我求你不要再为难我!
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*be at fault: to have done something wrong 有过错；有责任
Her doctor was at fault for/in not sending her straight to a specialist.
她的医生没有把她直接送到专科医生那里去治疗，在这一点上是有责任的。
*find fault with: 抱怨; 挑剔; 批评; 指责; 吹毛求疵; 找…的岔子; 挑毛病;  对...不满
He's always finding fault with my work.
他总是挑我工作上的毛病。
pick on:  If someone picks on you, they repeatedly criticize you unfairly or treat you unkindly. 刁难; 欺负;与…为难；不断责骂； 挑剔；作弄 ；找茬；批评; 指责
Bullies pick on younger children.  恃强凌弱(shì qiáng líng ruò)的家伙欺负更年幼的孩子。