principled

principled
adjective
  1. (of a person or their behaviour) acting in accordance with morality and showing recognition of right and wrong
    (人或其行为)有道德原则的;原则性强的
    a principled politician.
    一位原则性强的政界人士。
  2. (of a system or method) based on a given set of rules
    (制度,方法)原则性的,基于既定规则的
    a coherent and principled approach.
    连贯的原则性方法。
英语宝典
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