非洲单源说 fēizhōudānyuánshuō out of Africa theory Origin Definitions Defs Strokes Stroke Words Sentences Sents 非洲 fēizhōu proper noun Africa Africa; short for 阿非利加洲 āfēilìjiāzhōu单 單 dān adjective single single; individual; alone; separate源 yuán noun origin (bound form) root; origin; the starting cause or basis of something说 說 shuō theory (bound form) theory; doctrine; teachings; a particular system of thought