While I knew we could do better, I doubted there was a completely satisfactory solution to either of the two problems.

虽然我知道我们可以做得更好，但我怀疑没有一个完全满意的办法可以解决这两个问题中的任何一个。

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In northern China, drought and soil erosion are very severe. Water storage pit irrigation is a kind of new irrigation method that solves the two problems in hilly region.

干旱和水土流失是我国北方山丘区存在的两个较为严重的问题，蓄水坑灌法便是针对这两个问题而提出的适用于山丘区果林灌溉的一种新的节水灌溉方法。

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Popper put forward his philosophy of science including mainly "falsificationism" and "the growth of scientific knowledge" on the basis of rethinking and analyzing the two problems.

波普尔在重新思考和分析这两个问题的基础上，提出了他的以“证伪主义”和“科学知识增长”为主要内容的科学哲学思想。

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Many of the songs in his first two albums were about political and cultural problems during the nineteen nineties.

VOA: special.2009.10.14

OK. And then the exponentials, as you saw is when typically I reduce the problem of one size into two or more sub-problems of a smaller size.

好，然后说到指数级，正如你所见，典型的例子是,我讲一个问题分解成为,两个更小规模的子问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

All right, so unlike the other game, the two examples of coordination games we saw so far were really pure coordination problems.

没错,这和之前的博弈不同,目前为止我们看到的前两个案例,是纯粹的协调博弈

耶鲁公开课 - 博弈论课程节选

The most obvious explanation for this paradox is that the two problems exist in separate realms: obesity among the well-to-do, under-nutrition among the poor.

ECONOMIST: Arab diets

The two problems have a single solution.

ECONOMIST: Regulating radio

Let us look instead just at what the two major problems are at present.

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