/ ˈbreɪkθruː; NAmE / noun
an important development that may lead to an agreement or achievement :
to make / achieve a breakthrough
a significant breakthrough in negotiations
a major breakthrough in cancer research
/ ˈbreɪkθruː; NAmE / noun
an important development that may lead to an agreement or achievement :
to make / achieve a breakthrough
a significant breakthrough in negotiations
a major breakthrough in cancer research
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005