单词	double salt
释义	double salt noun : a salt (such as an alum) yielding on hydrolysis two different cations or anions Word History First Known Use circa 1849, in the meaning defined above
随便看	pipinesses piping piping crow piping crow-shrike piping down piping frog piping guan piping hare piping hot rocker cam rocker keel rocker panel rocker shaft rocker-stamp rockeries rockers rockery rockest rocket rocket bomb rocket candytuft rocket cress rocket larkspur rocket launcher rocket plane

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