SincethefirstEarthDayin1970,Americanshavegottenalot“gre...
問題詳情：SincethefirstEarthDayin1970,Americanshavegottenalot“greener”towardtheenvironment(環境).“Wedidn’tknowatthattimethatthereevenwasanenvironment,letalonethattherewasaproblemwithit,”saysBruceAn...