Proving, or demonstrating to an interrogator, that one is justified is another matter, and not necessary for simply being justified.

对于有道理仅仅来说，证明或展示给一名审问者自己是有道理的是另一件事情，而并不是必要的。

youdao

The reach of art-science tie-ups needs to go beyond the necessary purpose of research communication, and participants must not fall into the trap of stereotyping each other.

艺术与科学合作的范围不应局限于科研传播的必要目的，且参与者们必须避免陷入刻板印象的陷阱中。

youdao

It is not, in principle, necessary for a biological system to age and die.

原则上来说，生物系统的衰老和死亡都不是必然的。

youdao

I did not intend to fight unless it became necessary in self-defense and in the performance of official duty.

VOA: special.2010.02.15

The fact that I have this star here, this star here, this star here, is really just 'cause I'm a little anal and it looks pretty to make a little box out of everything but it's not strictly necessary.

事实上大家可以看到，这有颗星，这有颗星，这有颗星，其实是我手痒,这看起来像是用*围成个框，把它们包围起来,其实这是完全没有必要的。

哈佛公开课 - 计算机科学课程节选

we're looking for something that's true,necessary,interesting and, if not unique to death,at least not true of everything.

我们要寻找的是真实，必要，有趣的，而且就算不是死亡独有，也不能是普遍事实。

耶鲁公开课 - 死亡课程节选

What the president did was to save money by taking the recommendations of a commission of professionals to cut unwarranted subsidies to providers and insurance companies that were not making people healthier and were not necessary to get the providers to provide the service.

FORBES: Is President Clinton Capable of Telling the Truth?

Tell them their behavior is uncalled for, offensive and really not necessary.

FORBES: Five Ways to Banish Flakiness in Business

Real-time enterprise risk is difficult, expensive and not often necessary answers in minutes or even hours can usually suffice, according to SAS risk experts.

FORBES: SAS Moves Enterprise Risk to Near Real-Time