be on someone's back
US /bi ɑn ˈsʌm.wʌnz bæk/
UK /bi ɑn ˈsʌm.wʌnz bæk/
1.
催促, 唠叨
to constantly criticize or nag someone
:
•
My boss is always on my back about deadlines.
我的老板总是催促我完成截止日期。
•
She hates it when her parents are on her back about her grades.
她讨厌父母总是唠叨她的成绩。