单词	race suicide
释义	race suicide noun : the gradual extinction of a people or racial strain through a tendency to restrict voluntarily the rate of reproduction Word History Etymology race entry 7
随便看	periproctous periprocts peripteral peripteroi peripteros peripters periptery Peripylea perique periques peris perisarc perisarcal perisarcous perisarcs Perischoechinoida periscian periscians periscii periscope periscoped periscopes periscopic periscoping periselenes

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