But the story of 1938 also shows how hard it is to apply these insights.

但是，1938年的故事同时也告诉我们，要采用这些见解是多么的困难。

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But the story of 1938 also shows how hard it is to apply these insights.Even under f.

但是，1938年的故事同时也告诉我们，要采用这些见解是多么的困难。

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But there are also very smart engineers and start-up companies thinking hard about how to implement this potential source of fuel.

但也有非常聪明的工程师和刚成立的公司努力去考虑如何实现这个潜在的燃料来源。

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She admits how pleased she is with the results on her face, but also how hard it is to reconcile the way she used to look before the accident to how she looks now.

BBC: Paddington survivor removes mask

But it is also hard to tell how much that is because of his acting, and how much because fathers today are no longer such heroes and infidelity is no longer quite so shocking.

ECONOMIST: Arthur Miller��s classic play feels more relevant than ever

But it also reminds us of how hard that work was and how many disappointments he experienced.

WHITEHOUSE: Hyde Park Career Academy Chicago, Illinois