名词
中文翻译：适当的边缘
同义词：
['proper', 'fitting', 'appropriate']
例句：
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1. The book has a proper margin for notes and highlights.
这本书有适当的边距供做笔记和高亮。
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2. The room had a proper margin of space around it.
房间周围有足够的空间。
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3. The table was set up with a proper margin between the dishes.
餐桌摆放得当，盘子之间留有适当的间隔。