情景对话:

问题描述:

情景对话:
1.We can change electricity into energy.Tell us one king of energy.
2.How to keep water clean.Give out one example.
3.Welcome to China.Enjoy your stay!

1We can use a motor,when electricity goes throngh the machine,it will be changed into energy,called momentum.2First let the water run through some water plant,such like lotus.second let it run through...