资料来源 : pyDict

准时地,准确地

资料来源 : WordNet®

on the button
     adj : being precisely to a prescribed or specified criterion; "his
           guess was on the nose"; "the prediction for snow was
           right on the button" [syn: {on the nose}]
     adv : just as it should be; "`Precisely, my lord,' he said" [syn:
           {precisely}, {exactly}, {on the nose}, {on the dot}]