groundbreaking adj.創(chuàng)新的groundbreaker n.革新者groundberry n.硬毛黑莓；鼕青樹groundbeam 橫梁groundball n.滾地球groundbait n.釣魚時扔入和或湖中；引誘魚的魚餌groundauger n.地鑽groundair adj.陸空的groundage n.停泊費；進港稅ground-wire n.地線ground-water yield [地球科學(xué)]地下水可採量ground-water source [地球科學(xué)]地下水源ground-water soil [地球科學(xué)]潛水土ground-water area [地球科學(xué)]地下水域ground-up adj.碾碎的；磨成粉的ground-tackle 錨泊裝置ground-swell (n.) ground-subsidence 地麪塌陷ground-state n.基態(tài)ground-resistance 接地電阻