alternation by turns in turn rotation take turns turn turn and turn about
轮流;
devolution in file in turn priority take turns turn and turn about
依次;
graceless ill-mannered barbaric gross ill-bred insolent
粗野的;
graceless ill-mannered barbaric gross ill-bred insolent
粗野的;
ill-fated ill-omened inauspicious infelicitous portentous
不吉的;