harp on
US /hɑːrp ɑːn/
UK /hɑːrp ɑːn/

1.
唠叨, 纠缠
to talk or write persistently and tediously on a particular subject
:
•
He keeps harping on about the good old days.
他老是唠叨着过去的好时光。
•
I wish she wouldn't harp on my mistakes.
我希望她不要老是纠缠我的错误。
唠叨, 纠缠
to talk or write persistently and tediously on a particular subject