资料来源 : pyDict

私下地,秘密地

资料来源 : WordNet®

on the Q.T.
     adv : in secrecy; not openly; "met secretly to discuss the
           invasion plans"; "the children secretly went to the
           movies when they were supposed to be at the library";
           "they arranged to meet in secret" [syn: {secretly}, {in
           secret}, {on the QT}]