My word version is word20 16. Different versions have slightly different operations, but the routines are similar. We open a word document, as shown in the figure.

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Then click on the top of the page, as shown-Layout.

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Then select margins.

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Here are several margins for us to choose from. If we need to customize them, we can click Custom Margins.

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According to the requirements of my thesis, I adjust the margins in turn as required, then click Apply to the whole document and click OK.

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