柯林斯詞典sill /s?l/ (sills) 1. N-COUNT A sill is a shelf along the bottom edge of a window, either inside or outside a building. 窗臺 Whitlock was perched on the sill of the room's only window. 惠特洛克棲息在房里惟一窗子的窗臺上。 返回 sill劍橋詞典a flat piece of wood , stone , etc. that forms the base of a window or door 窗臺；門檻 也見 windowsill 返回 sill