N something lacked and wanted 缺少而想得到的东西
This would be fine if zero regulation were the social desideratum, but it is not.
如果零管制是社会需要的那将很好，但并不是这样。
Not a bad fraction of the desideratum, but one that will be hard to sustain in the face of the world's economic difficulties.
与总需求相比这还不算太糟，但在全球经济面临困境的当下，想维持这一水平却又是个难题。
If it can be dealt with, that will be a huge step towards the ultimate desideratum of HIV research-a simple and effective cure.
如果这些问题解决了，那么就会朝向艾滋病研究的终极目标，即简单有效地治愈艾滋病，又前进了一大步。
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