know the ins and outs (of something)

To know the particular details and nuances of a situation, task, etc. I'm not surprised he made such a stupid mistake—he doesn’t know the ins and outs of this business. Come to me if you have any questions. I've been here seven years, so I know the ins and outs.

词组	know the ins and outs (of something)
释义	know the ins and outs (of something) know the ins and outs (of something) To know the particular details and nuances of a situation, task, etc. I'm not surprised he made such a stupid mistake—he doesn’t know the ins and outs of this business. Come to me if you have any questions. I've been here seven years, so I know the ins and outs. See also: and, INS, know, out Farlex Dictionary of Idioms. See also: AFAIK before you know it as you know as we know it (my) mama didn't raise no dummy dummt dummy (my) momma didn't raise no dummy I know a drag
随便看	in pencil in perpetuity in person in perspective in petto in phase in phase/out of phase in phase (with someone or something) in place in place of in place of somebody/something in place of (someone or something) in place of (something) in plain English in plain language in plain view in play in pocket in point in point of in point of fact in pole position in poor taste in pop in possession