Ancient literature uses fictional characters to illustrate moral dilemmas.古代文学作品中常用虚构的人物来表现道德困境。She describes her own moral dilemma in making the film.她描述了她在电影制作过程当中遇到的道德困境。The moral dilemmas of the early settlers are beyond the purview of this book.这本书没有涉及早期殖民者的道德困境问题。