mattressKK [ˋmætrəs] /ˈmætɹəs/发音名词1床垫We finally replaced the old mattress because my back was aching.我们终于换掉那张旧床垫,因为我的背一直很痛。2气垫、充气床垫He blew up an air mattress for the guests in the living room.他在客厅帮客人充好了一张气垫床。用这个字练口说→