a necessary evil
常见例句
- 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。 - Many view Mr Obama’s plan to send more American forces there as a necessary evil.
许多人视奥巴马先生送更多美军到那儿为一种有必要的罪恶。
ecocn.org - More fundamentally, they've turned screen time from a signal of geekiness, a job requirement or a necessary evil into a straightforward aspect of modern existence.
更为根本的是，它们把屏幕时间从极客的标识，工作的要求，或者一个必要的坏事，变成现代存在的简明的一面。 - They believed that it was a necessary evil.
- Some would get worried and they would discuss slavery as a necessary evil this system entailed upon them.
有些人感到忧虑,他们认为传承下来的奴隶制,毫无疑问是种罪恶
耶鲁公开课 - 美国内战与重建课程节选 - Free-market advocates, such as The Economist, then become mere apologists for it as a necessary evil.
ECONOMIST: Capitalism's future - Many view Mr Obama's plan to send more American forces there as a necessary evil.
ECONOMIST: Barack Obama's foreign policy - Until Watergate this was accepted by most as a necessary evil to safeguard the nation's security.
CENTERFORSECURITYPOLICY: The Case Against the Halperin Nomination -- First Edition 返回 a necessary evil