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to shake; to sway; to rock; to swing; to tremble; to jolt; to pitch; to roll; to flicker
to become unstable; to become unsettled; to be shaken; to waver
地震で建物が揺れました。
The building shook from the earthquake.
揺れる気持ちを抑えきれない。
I can't suppress my wavering feelings.
風で木の枝が揺れています。
The trees are swaying in the wind.