launch into sth | ˈlaunch yourself into sth
to begin sth in an enthusiastic way, especially sth that will take a long time :
He launched into a lengthy account of his career.
launch into sth | ˈlaunch yourself into sth
to begin sth in an enthusiastic way, especially sth that will take a long time :
He launched into a lengthy account of his career.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005