eugenics

优生学在20世纪初期曾被某些国家用作控制人口质量的手段。

In the early 20th century, some nations used ___eugenics as a means to control perceived population quality.

这部小说想象了一个由优生学决定谁能生育、谁不能生育的世界。

The novel imagined a world where ___eugenics dictated who could have children and who could not.

国际公约已将优生学谴责为对基本人权的侵犯。

International conventions have condemned ___eugenics as a violation of fundamental human rights.