topsoilKK [ˋtɑpˏsɔɪl] /ˈtɑpˌsɔɪl/发音名词1表土、表层土、上层土Heavy rain washed away the topsoil from the bare hillside.大雨把光秃山坡上的表土冲走了。2培养土、覆盖用土We ordered a truckload of topsoil for the new flower beds.我们订了一卡车的培养土来铺新花圃。用这个字练口说→