pump pit

例句：

1. 1.The pump pit was filled with water after the rain.
   雨后，泵坑里充满了水。
2. 2.The wellhead is visible from the roadside.
   从路边可以看到井口。
3. 3.The wellbore was filled with sand and gravel.
   井眼被沙砾填满了。