单词	R and D
释义	R and D abbreviation or noun ˌär-ən-ˈdē : research and development Word History First Known Use 1952, in the meaning defined above
随便看	toters totes totes (up) totes up tother tothers toti- totidem verbis totients toties quoties toting toting (up) toting up Totipalmatae totipalmate totipalmation totipalmations totipotencies totipotency totipotent totis viribus totitives toto toto caelo toto coelo

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