Read Edit View history 优生学 yōushēngxué eugenics Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 优生学/優生學 · yōushēngxué · eugenics 2026/03/04 优生学 / 優生學 yōushēngxué eugenics eugenics 这本书讨论了优生学的伦理问题。 noun created sense Mar 4, 2026, 02:25 AM