那位老人在公园里散步时,来回摆动着他的手杖。

The old man swung his walking stick as he strolled through the park.

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The old man swung his walking stick as he strolled through the park.

解释 swung 是动词 swing 的过去式,swing 的意思是"摆动、摇摆",指物体以固定点为中心做弧线运动。

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