you never know with (someone or something)

It's hard or impossible to predict someone's or something's behavior or quality. I think Jim is supposed to be finishing up that report, but you never know with him—he could have done a bang-up job on it, or he might not have done it at all. The TV is supposed to sync up with your phone through this USB adapter, but you never know with these cheap Chinese knockoffs.

词组	you never know with (someone or something)
释义	you never know with (someone or something) you never know with (someone or something) It's hard or impossible to predict someone's or something's behavior or quality. I think Jim is supposed to be finishing up that report, but you never know with him—he could have done a bang-up job on it, or he might not have done it at all. The TV is supposed to sync up with your phone through this USB adapter, but you never know with these cheap Chinese knockoffs. See also: know, never Farlex Dictionary of Idioms. See also: on present form ragged a ragged colt may make a good horse colt not stand in (someone's or something's) way not stand in somebody's way a track record the proof of the pudding proof of the pudding, the a nail in somebody's/something's coffin
随便看	pitchfork pitch forward pitch in pitch in and help pitch into pitch it pitch on pitch (one) a curve (ball) pitch (one) a line pitch (one) a story pitch (one) a yarn pitch out pitch over pitch-perfect pitch (something) at pitch (something) to pitch the woo pitch up pitch upon pitch woo pith pith of the matter pit in pit of stomach pit (one's) wits against (someone or something)