道德困境 moral dilemma或者ethics dilemma的英文定义

An ethical dilemma is a complex situation that often involves an apparent mental conflict between moral imperatives,in which to obey one would result in transgressing another.
The crucial features of a moral dilemma are these:the agent is required to do each of two (or more) actions; the agent can do each of the actions; but the agent cannot do both (or all) of the actions.