This is the 12169th most frequent Korean word.
늘렸다가
"늘렸다가" means "after extending/increasing and then."
In this sentence, '늘렸다가' conveys that the action of expanding the playground was performed, followed by a contrasting action of reducing its size.
나는 운동장을 늘렸다가 다시 원래 크기로 줄였다.
I extended the playground, then reduced it back to its original size.
Here, '늘렸다가' indicates that the collection was increased in scope prior to selling some items, showing temporal sequence of actions.
그는 자신의 수집품을 늘렸다가 일부를 팔았다.
He expanded his collection, then sold parts of it.
In this context, '늘렸다가' illustrates the temporary enlargement of the team, implying ensuing downsizing after a specific period.