long diagonal of indentation

例句：

1. 1.The long diagonal of the room is perfect for a reading corner.
   房间的长对角线非常适合阅读角落。
2. 2.The architect designed the building with a long diagonal to maximize natural light.
   建筑师设计这座建筑时，特意选择了长对角线以最大化自然光。
3. 3. The long diagonal of the river runs through the city center.
   河流的长对角线穿过市中心。