A crescent-shaped or semicircular space, usually over a door or window, that may contain another window, a sculpture, or a mural.是什么意思_A crescent-shaped or semicircular space, usually over a door or window, that may contain another window, a sculpture, or a mural.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句