paving stone

noun
🔊/ˈpeɪvɪŋ stəʊn/
🔊/ˈpeɪvɪŋ stəʊn/
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  1. a flat, usually square, piece of stone that is used to make a hard surface for walking on铺地石板;方石板 synonym flagstoneTopics Physics and chemistryc2, Gardensc2