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We can solve this problem by turning off the water when not in use. Turn off the lights when you retire Always unplug after use. Water washing plants etc, which of these methods is to reduce the use of water and electricity or water and fire to benefit most. Therefore, you will see that it is an easy way to do it and can do it all, we are students, when we entered the classroom, it will wait for a bunch of friends come and open air. When learning, closing the air does not remain open.
Being translated, please wait..
