The sentence defines normative ethics by specifying the sense of the "norms" for which it searches.
这个句子通过指定它所寻找的“规范”的意义来定义规范性伦理。
2
In searching for norms in the sense of authoritative standards of what ought to be, rather than in the sense of what is average and thus can be considered normal, normative ethics aims to dictate.