空心墙 kōngxīnqiáng cavity wall Definitions Defs Origin Strokes Stroke Words Sentences Sents 空心墙 空心牆 kōngxīnqiáng cavity wall hollow wall; a wall built with a gap between two layers of brick or inside and often filled with insulation
空心墙 空心牆 kōngxīnqiáng cavity wall hollow wall; a wall built with a gap between two layers of brick or inside and often filled with insulation
