Подбор синонимов:
collaborated2, war1, were1, punished1, during1, afterwards1, enemy1, students1, book1, People1- collaborate
_v. 1 сотрудничать (with) One of my students collaborated with me on this book. 2 предательски сотрудничать (с врагом) (with) People who collaborated with the enemy during the war were punished afterwards.