vacillate in Russian
vacillate in Russian
кача́ться
(intransitive) To sway unsteadily from one side to the other; oscillate.
колеба́ться
(intransitive) To sway unsteadily from one side to the other; oscillate.
колеба́ться
(intransitive) To swing indecisively from one course of action or opinion to another.