ON AND OFF

adv. нерегулярно, периодически, иногда: Kate wrote to his pen pal in Russia on and off for one year. - Кейт в течение года иногда писала своему русскому другу.

on and off—on and off translation on and off amp off and on occasionally erratically now and again. I feel better off and on but Im not well yet. He only came to class on and off....Dictionary of American idioms
on and off—on and off translation on and off amp off and on occasionally erratically now and again. I feel better off and on but Im not well yet. He only came to class on and off....Dictionary of American idioms
on and off—время от времени иногда...Англо-русский большой универсальный переводческий словарь
on and off—нерегулярно периодически иногда...Англо-русский словарь идиом
on and off—n время от времени периодически...Англо-русский словарь Лингвистика-98
on and off—on and off время от времени иногда...Англо-русский словарь Мюллера
on and off—время от времени иногда...Англо-русский словарь общей лексики