The swearing-in at the beginning of a trial or official appointment is the act of making formal promises to fulfil the duties it involves.
N-SING
The swearing-in at the beginning of a trial or official appointment is the act of making formal promises to fulfil the duties it involves.
N-SING
Collins COBUILD Advanced Learner's English Dictionary. Английский словарь Коллинз COBUILD для изучающих язык на продвинутом уровне. 2006