- Whensummercomes,theairisstuffyandthetemperatureissohigh.Thankstotheinventionofair-condition,peoplearenolongersuffertothehotweather,theycanstayattheindoorsandenjoythecoolnessthatair-conditionbrings.Buttheproblemcomes,whenpeoplecountonair-conditionfora...
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