Her task is a tricky but necessary one.
她的任务很棘手但却很有必要。
A depressing, but necessary tale of our times.
这是一个令人压抑的、但却是我们时代需要的记述。
This is simple, but necessary housekeeping.
这是简单但又必要的惯务。
We took some very bold but necessary measures in August.
八月，我们采取了一些非常果断但必要的措施。
Capital punishment is surely a cruel but necessary punishment.
死刑的确是一种残酷但是又很必要的刑罚。
A bit ghoulish, I know, but necessary to stage your coming out.
有一点残忍，我知道，但这是你复出的必要准备。
Security is a difficult but necessary proposition for any application.
对于任何应用程序，安全是一个困难但必要的命题。
Sometimes, a video screen is the unwelcome but necessary alternative.
有时，电视节目实在不好，但又必不可少。
"C" are unwritten or unavoidable but necessary (administration, travel, personal).
“C”级事项是口头的或者是不可避免的，但确是必须的(管理、旅游，私人事情)。
So we need to verify the range of each separate behavior - this is not easy but necessary!
所以我们需要验证每个单独行为的边界范围——这个不容易但很必要！
It is not only possible but necessary to change one's approach to love to ward off depression.
为了不在抑郁，改变我们爱人的方式不仅可能而且也是必须的。
Some immediate action was necessary—but what?
必须立即采取行动——但应该采取什么行动呢？
The doctors will operate if necessary—but it may not come to that.
必要时医生会施行手术，但也许还不致如此。
Team spirit is necessary not only for a team's success but also for personal development.
团队精神不仅对一个团队的成功是必要的，而且对个人发展来说也是必要的。
但行动是必需的。
But this is necessary step to heal.
但是这是个痊愈必要步骤。
But why is convergence necessary?
但是，为什么需要收敛呢？
But they were not strictly necessary.
但是这些并不是完全必要的。
They have no control over these handling rules, but they are necessary for correct behavior.
这些添加对操作规则没有控制能力，但是他们对于正确的操作是必要的。
These last few ideals are not necessary, but would be great.
这些最后的理想不是必须的，但是有的话更好。
I think we all agree that change is necessary but inconvenient.
我想我们都同意变更是必然的，但又是不容易处理的。
Identity is not necessary, but contingent, as the philosophers put it.
同一性不是必然的，而是偶然的，就像哲学家们常说的。
This is not strictly necessary, but it is safer.
严格地来说，这是不是必须的，但这更为安全。
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。
Profit was viewed as necessary, but not sufficient, to justify everything Apple did.
盈利被视为必要的，但还不够证明苹果所要做的是对的。
Specific knowledge of JMS is not necessary but helpful.
JMS的专门知识不是必需的，但会有帮助。
Sorry to use jargon, but sometimes it's necessary.
对不起用了行话，但有时候还是必要的。
Yet that is a necessary but not sufficient condition for its success.
然而，对于它的成功来说，这是一个必要条件，但不是充分条件。
Yet that is a necessary but not sufficient condition for its success.
然而，对于它的成功来说，这是一个必要条件，但不是充分条件。
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