back and forth
01
앞뒤로, 왔다 갔다
repeatedly going in one direction and then in the opposite direction
예시들
The windshield wipers moved back and forth, clearing the rain from the car window.
와이퍼가 앞뒤로 움직이며 차 창문에서 비를 닦아냈습니다.
Back and forth
01
왔다 갔다, 앞뒤
a repetitive movement or action between two points
예시들
There was a lot of back and forth in the negotiations before a deal was reached.
합의가 도출되기 전에 협상에서 많은 왔다 갔다가 있었습니다.



























