The boy went up and down the stairs three at a time.three at

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The boy went up and down the stairs three at a time.three at a time划线,对划线部分提问

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2026-11-15 21:55:13

How did the boy go up and down the stairs?

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  • 苗条的保温杯
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    2026-11-15 21:55:13

    How did the boy go up and down the stairs?

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