alternately russian
попереме́нно
in turn, by turns, alternately
впереме́жку
alternately, in turn, turn and turn about
поочерёдно
one by one, in turn, one after another
alternately, by turns, taking turns
in turn, by turns, alternately
alternately, in turn, turn and turn about
one by one, in turn, one after another
alternately, by turns, taking turns