Nobody really likes them, but they are a necessary evil.
没有人真正喜欢它们，但它们是必要之恶。
While it can be tedious, it is a necessary evil of systems administration.
尽管它单调乏味、令人生厌，但它是系统管理所必需的。
Learn to see sleep as a pleasure, not a necessary evil or a luxury.
学着把睡觉当成是乐趣，而不是一个必须的麻烦或是奢侈。
Higher taxes may be a necessary evil.
提高税率虽不是件令人愉快的事，但可能是必要的。
We need to know that overcapacity is a necessary evil of market competition.
我们必须知道的是产能过剩是市场竞争的必然产物。
All that is necessary for the triumph of evil is that good men do nothing.
邪恶获得胜利的唯一条件，就是善良的人们保持沉默。
All that is necessary for the triumph of evil is that good men do nothing.
邪恶获得胜利的唯一条件，就是善良的人们保持沉默。
应用推荐