floss hole

例句：

1. 1. The flaw in the designwas that it didn't fit properly.
   设计上的缺陷是它没有合适地安装。
2. 2. The gap between the two countries haswidened over time.
   两国之间的差距随着时间的推移而扩大。
3. 3. The hole in the wall wasfilled with water after the flood.
   洪水过后，墙上的洞被水填满了。