老式座钟的摆锤有节奏地左右摆动。
The old clock's ___pendulum swung rhythmically from side to side.
政治风向就像钟摆一样在左右之间不断摇摆。
The political climate swings like a ___pendulum between left and right.
政治立场就像钟摆一样在两极之间摇摆不定。
His political stance is like a ___pendulum swinging between two extremes.
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