The second is the use of fire and water. I was very economical to use, known as the most valuable time I sleep, they often turn off the lights every time. Not left open for a long time, and unplug all the time. And to determine whether there is room for other appliances left open, it is closed. The use of water I use water sparingly and make the most of open water left. Although the hostel is free to use it. But I still used to save and to throw the switch. The use of open water left and the right amount, not much, not too little.
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