Read Edit View history 拱心石 gǒngxīnshí keystone Origin Definitions Defs Strokes Stroke Words Sentences Sents 拱心石 gǒngxīnshí keystone central stone at the summit of an arch that locks the whole structure together Cross-References Classifier 块 kuài
拱心石 gǒngxīnshí keystone central stone at the summit of an arch that locks the whole structure together Cross-References Classifier 块 kuài