揺れ動く
1
to shake;to tremble;to sway;to flicker
ボートは波立つ水の上で揺れ動いた。
The boat danced on the choppy water.
2
to be unsettled;to be unstable;to fluctuate;to waver (e.g. between options);to vacillate;to seesaw
Other forms
ゆれ動く 【ゆれうごく】