APP Althoughtheworlddevelopsmuchfasterandbetter，theresourcesontheearthgetfewerandfewer.Inordertoprotectthem，somethingmustbedone?！ avewater.Wateristhesourceoflife.Nowater，nolife.Soit‘sveryimportantforustodoso.Notonlyshouldweprotectdrinkingwaterandstoppollutingit，butalsomakefulluseofit?！ aveelectricity.Itiscrucial.Wecan‘timaginewhatthelifewillbelikewithoutit.Everyoneshou
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