adjective交替的,轮流的;间隔的;可供替代的
verb交替,轮流
adjectivewith first one thing, then the other, then the first thing again, etc.
adjectiveif something happens on alternate days, nights, etc., it happens on one day, etc. but not on the next
adjectivethat you can use, do, etc. instead of something else
verbIf two things alternate, first one thing happens and then the other and then the first thing happens again, etc.