| 1 | When we boil water, it turns into steam. | |
| 2 | At home, we use fire to cook food and boil water. | |
| 3 | Nowadays, people do not only use fire to cook food or boil water. | |
| 4 | First take your kettle and fill it with water,then plug the kettle into the plug and boil the water. | |
| 5 | You can do these in the time it takes to boil the kettle. |
Copyright © Purple Culture Co., Ltd. 2001 - 2026. All right reserved.
