名词 windowsill:

1. the sill of a window; the horizontal member at the bottom of the window frame

windowing开窗术windown.窗户；橱窗；视窗window management software窗口管理软件window spectrum estimation窗谱估计window cleaner rs platform擦窗活动平台windowed pattern primitive窗口模式基元window energy-conserving窗户节能window dressing accounting粉饰会计windowless gas flow counter无窗气流计数器window manipulation routine窗口处理程序window type air conditioner窗式空调器window width of application应用程序窗口宽度

1. There are dots of soot on the window sill.
   窗台上有一点烟灰。
2. She painted the window sills a bright colour.
   她把窗台漆上鲜艳的颜色。