سلسلة تعلّم العامّية الامريكيّة والمصطلحات الإنجليزيّة

To and fro

ذهابًا وإيابًا؛ في جِيئَةٍ وذَهابٍ.

Backward and forward; in a constant movement or oscillation between two points.

He paced to and fro in the room, unable to sit still while waiting for the news.