摇摆 (yáo bǎi): to sway; to wobble; to waver

He wavered between two job offers for a long time, and finally decided to stay at his original company.

The little girl sat on the swing, happily swinging back and forth.

When big issues come up, his stance always wavers, leaving people unsure which side he really supports.

That old tree swayed ceaselessly in the wind, its leaves rustling.

Her feelings wavered between reason and impulse, and she could never make a decision.