由于仅有少數的研究探索音樂资优生的社会情绪议题，所以针对男性音樂资优青少年所遭遇的社会情绪议题之研究更为匮乏。
There have been few research studies of the social and emotional issues facing musically gifted students, let alone those facing musically gifted male adolescents.
在二十世纪早期，马尔萨斯对于人口控制的想法还与优生学和社会达尔文主义有关。
In the early twentieth century, Malthusian ideas on population control were linked to theories of eugenics and social Darwinism.
他在国际舞台上对条顿主义的蔑视和社会中的优生学使他成为纳粹主义的最早敌人之一。
His contempt for Teutonism in the international arena and eugenics within a society made him one of Nazism's earliest foes.
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