智者回答说：“因为我把量脚的棍子忘在家里了。”

The wise man replied, "Because I left the stick that I had used to measure my feet at home."

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李四量了量脚的尺寸，便向鞋店走去。

Measuring his foot, Li Si went to the shoe store.

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按照书上的说明，这个人拿了一根棍子，用它量了量自己的脚。

Following the books' instructions, the man took a stick and measured his feet with it.

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