It's a foreign concept to most of us to be that compassionate to ourselves.

对多数人而言,同情自我是个陌生概念。

普林斯顿公开课 - 人性课程节选

This concept of introducing foreign genes, genes that are made of recombinant DNA into animals using this kind of technique is widely used in biomedical research.

这种通过基因重组,来向动物体内导入外源基因的方法,广泛应用于,各种生物医药的研究中

耶鲁公开课 - 生物医学工程探索课程节选