普通墙
plain───n.平原；无格式；朴实无华的东西；n.(Plain)人名；(英)普莱恩；(法)普兰；adj.平的；简单的；朴素的；清晰的；adv.清楚地；平易地
walls───n.墙壁；墙体（wall的复数）；v.堵塞；禁闭；用墙围住（wall的单三形式）；n.(Walls)人名；(芬)瓦尔斯；(英)沃尔斯
plain rice───n.白饭
plain tarousahe───平原塔鲁萨河
plain language───明语；普通语言
dark plain───暗平原
by plain───平装
plain nasty───非常肮脏的；非常恶心的
plain facts───明显的事实
The walls were plain and unadorned.───墙壁朴素无华。
Peter set up a forward camp with hastily constructed timber walls and outworks, or redoubts, extending into the plain.───彼得则匆忙建起延伸至平原的木墙、外堡或者角面堡，并以此为前进营地。
Traditional European carved stone corner waterfalls can be added to patios that adjoin exterior walls, adding visual variety to plain walls.───传统的欧洲石刻角落瀑布可以添加到毗邻院子的外墙，增加品种为纯视觉墙壁。
The essential projection is of simple wooden furniture, plain walls, some carpeting on the polished floorboards.