stretched form

例句：

1. 1.The tent was stretched out over the grass.
   帐篷在草地上展开。
2. 2. His arm is stretched out as far as it can go.
   他的手臂尽可能地伸展开。
3. 3. The river is stretched out like a ribbon.
   河流像一条细带子一样延伸开来。