单词	universal set
释义	universal set noun : a set that contains all elements relevant to a particular discussion or problem : universe of discourse sense 2 Word History First Known Use 1933, in the meaning defined above
随便看	luxembourgian luxembourgs Luxemburg luxemburg luxemburger luxemburgers luxemburgian luxemburgs luxer luxes luxest luxmeter luxmeters luxometer Luxor luxores luxors luxuriae luxuriance luxuriances luxuriancy luxuriant luxuriantly luxurias luxuriate

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