infinite line

例句：

1. 1. The ocean is infinite in its vastness.
   海洋以其辽阔无垠而著称。
2. 2. The sky above is infinite and endless.
   头顶的天空无边无际。
3. 3. The universe is infinite and full of wonders.
   宇宙是无限的，充满了奇迹。