Actually, the problem isn't just an aerospace problem but a general problem that can be seen in many structures we test.

实际上，这不仅仅是一个航天问题，而是在我们所测试的很多结构上都可以观察到的一个普遍问题。

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"Action has also been taken in Britain,America and Australia, and many other countries to tighten financial regulation and we are bringing regulatory structures into line with the reality of global 21st century financial markets,"

VOA: standard.2009.03.30

We're going to really get into this next class, but I just want to introduce it to you to give us a start, and many of you have used Lewis structures in high school, but we'll be doing some much more challenging Lewis structures, I can assure you, in this class here.

其实我们下节课才会详细介绍它，但是今天我只想以简单介绍作为开始，大部分同学在高中就用过路易斯结构了，但是我们会遇到一些更具挑战性的,路易斯结构，我可以向大家保证，在这门课中会的。

麻省理工公开课 - 化学原理课程节选

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Many of the lights will remain lit, keeping ships in safe waters, but the Coast Guard wants out of the historic preservation business--it doesn't want the responsibility of caring for and preserving so many decaying structures, many of which were built in the 19th century.

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