| 1 | Gas escapes from the pipe. | |
| 2 | The piping outside the house needs painting. | |
| 3 | Air pressure forces the water through the pipe. | |
| 4 | The engine draws water along the pipe. | |
| 5 | These pipes carry water to the town. |
Copyright © Purple Culture Co., Ltd. 2001 - 2026. All right reserved.
