不说起某事

mum keep sth. secret keep to sth. keep silent about keep on about keep sb. going in sth. make a noise about sth. inquire of sb. about sth. keep sth. a secret from sb. keep about keep down keep on about mum keep one's wits about one whisper about sth get sore about sth be agitated about sth go about sth hang about sth squabble about sth be versant about sth harp on about sth