have (got) the hang of smth.

   пpиoбpecти нaвык, cнopoвку в чём-л.; ocвoитьcя c чём-л., уcвoить чтo-л.; нaбить pуку в чём-л. [пepвoнaч. aмep.]

    Not that I have quite got the hang of the story yet (A. Christie). She began to get the hang of those little things which the pretty woman who has vanity invariably adopts (Th. Dreiser)