单词	gypsum
释义	gypsumgypsum /ˈdʒɪpsəm/ noun [uncountable] Etymology ETYMOLOGYgypsum Origin: 1300-1400 Latin Greek gypsos a soft white substance, usually in the form of powder, that is used to make plaster of Paris, which becomes hard after it has been mixed with water and has dried
随便看	undue undulate undulating undulation unduly undying unearned unearth unearthliness unearthly unease uneasily uneasiness uneasy uneducated unelected unemotional unemployed unemployment unemployment benefits unemployment line unencumbered unending unenviable unequal

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