名词
中文翻译：沙垫
同义词：
['sandbag', 'sandbag cushion']
例句：
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1. The old man sat on the sandcushion to rest his aching back.
老人坐在沙垫上休息他的酸痛的背。
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2. The children played on the sand cushionwhile their parents watched from the beach.
孩子们在沙垫上玩耍，而他们的父母则在海滩上观看。
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3. The sand cushionwas used as a protective layer duringconstruction.
沙垫被用作施工过程中的保护层。