单词	back-scratching
释义	back-scratching noun back-scratch·​ing ˈbak-ˌskra-chiŋ  : the reciprocal exchange of favors, services, assistance, or praise Word History First Known Use 1882, in the meaning defined above
随便看	aisle seat aisled aisles aisleway aisleways Lei Day lei-chou leibnitzes Leibniz leibnizes leibnizian Leibnizianism leibnizzes Leibovitz leicester Leicester Leicester red leicesters Leicestershire leicestershires leich Leichhardt's pine leichhardt's tree Leics Leiden

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