Recent findings, however, make it necessary to reverse this picture.

然而，最近的研究发现，有必要扭转这一局面。

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Sade's fans seem to trust that she doesn't build something until something's happened to make it necessary.

沙黛的乐迷们看起来信任她只有在确有必要时才会进行这种构建。

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Rather, the common interest of all nations and all peoples make it necessary to recognize that our survival demands that we leave the stage of global barbarism.

恰恰相反，所有国家和民族的共同利益使得我们有必要意识到，只有全球远离全球性的暴力行为阶段，人类才能生存。

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Farmers know that it is necessary to make hay while the sun shines.

VOA: special.2010.01.31

And what we saw last time is that this was necessary to make things work, this part of it in particular.

上节课我们讲,这是对外做功的必要条件，特别是这个部分。

麻省理工公开课 - 热力学与动力学课程节选

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

Mr Draghi said that the ECB was prepared to cut interest rates further should conditions make it necessary.

BBC: ECB's Draghi 'ready to act if needed'

"Sustained conditions of low demand in European markets make it necessary to realign Honda's business structure, " the company said in a statement.

BBC: Honda to cut 800 jobs in Swindon

To date, the Bush administration has rejected calls to send more Americans to Iraq, which might also make it necessary to increase the size of America's overstretched military.

ECONOMIST: Rethinking Iraq | The