blank fill

例句：

1. 1. The page is blank;there's nothing written on it.
   那页是空白的，上面没有写东西。
2. 2.The book had a blank cover; no pictures were included.
   这本书封面是空白的，里面没有插图。
3. 3. She filled the notebook with blank pages.
   她把笔记本填满了空白页。