Gb	Eng
他在狭窄的窗台上很难保持平衡.	He balanced precariously on the narrow window-ledge.
他把一些书放在窗台上。	He keeps some books on the window ledge.
窗台上积了灰尘.	Dust had collected on the window-sill.
她把窗台漆上鲜艳的颜色。	She painted the window sills a bright colour.