篝火的光芒在风中摇曳。
The campfire's light ___wavered in the wind.
他一直在犹豫要不要买那辆车。
He kept ___wavering over whether to buy that car.
她情绪多变，经常在乐观和悲观之间摇摆。
Her mood often ___wavers between optimism and pessimism.
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