back and forth
US /bæk ən fɔːrθ/
UK /bæk ən fɔːrθ/

1.
ke sana ke mari, ulang-alik
moving first in one direction and then in the opposite direction repeatedly
:
•
The pendulum swung back and forth.
Bandul berayun ke sana ke mari.
•
They walked back and forth across the room.
Mereka berjalan ke sana ke mari melintasi bilik.
2.
ke sana ke mari, antara dua pihak
between two points, people, or places
:
•
The ball went back and forth between the players.
Bola bergerak ke sana ke mari antara pemain.
•
They exchanged emails back and forth for days.
Mereka bertukar e-mel berulang-alik selama beberapa hari.