名词
中文翻译：碎石
同义词：
['gravel', 'rubble', 'cobblestone']
例句：
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1.The road was covered in loose gravel.
路面上铺满了松散的砾石。
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2.The builders used large blocks of stone to create the walls.
建筑工人用大块的石头来建造墙壁。
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3. The old house had been renovated with new bricks and cobblestones.
这座老房子经过翻新，使用了新的砖块和砾石。