take off(During the first year of life, children's ability to understand and use language develops exponentially. It just takes off in that first year of life. – берёт разгонART Vancouver)
flip burgers(чтобы заработать на прожитон средней паршивости I know you need cash, but I think you should focus your energy on finding a solid job rather than picking up a few bucks flipping burgers. VLZ_58)