The ins and outs
Meaning: all the details and facts about something, all info about
Example: He knows the ins and outs of this business. Tolya is someone who knows the ins and outs of the music industry.
Выучи грамотный разговорный английский до уверенного владения всего за 9 месяцев по системе естественного усвоения иностранных языков. Жми!
Example: He knows the ins and outs of this business. Tolya is someone who knows the ins and outs of the music industry.