Especially the hot and cold water, as many people might not like the student? Because of the time it feels like drinking, there wasn't water or sometimes a long time.
Especially drinking water, which is heated is that many people may not like as much. Because of the time it feels like not to drink water or sometimes when you are tired.
Especially warm water which drinking hot water is that many people may not like very much. Because the time will feel like not drinking water or sometimes when tired.