名词
中文翻译：底层床
同义词：
['underbed', 'underframe bed', 'underframe bed frame']
例句：
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1.The underlaying bed is designed toprovide extra support for the mattress.
底层床设计用来为床垫提供额外的支撑。
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2. Theunderlaying bed frame is made ofsturdy wood and has a smooth surface.
底层床框架由坚固的木材制成，表面光滑。
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3. The underlaying bed frameis essential for providing proper support and comfortduring sleep.
底层床框架对于提供适当的支持和睡眠舒适至关重要。