/ˈsiːlɪŋ/ n. 最高飞行限度，升限 N-COUNT A ceiling is the horizontal surface that forms the top part or roof inside a room. 天花板，吊顶； The rooms were spacious, with tall windows and high ceilings. N-COUNT A ceiling on something such as prices or wages is an official upper limit that cannot be broken. (价格、工资等的)上限，最高限度； an informal agreement to put a ceiling on salaries. 一项规定工资上限的非正式协议。