window-sill

例句：

1. 1. The window-sill is covered in a layer of dust.
   窗台覆盖着一层灰尘。
2. 2. The painter carefully painted the window-sill, making sure it was perfect.
   画家仔细地画了窗台，确保它完美无瑕。
3. 3. The children were playing on the window-sill, enjoying the warm sun.
   孩子们在窗台上玩耍，享受着温暖的阳光。