基本解释n. 硬質巖石词组短语短語ragstone ramming method 片石夯壓法needle and ragstone 針片狀ragstone更多词组英英字典柯林斯英英字典 a hard sandstone or limestone, esp when used for building (Also called rag, ragg)ragstone剑桥字典ragstone柯林斯字典