As one of public transit system's important carriers, motor-bus has been receiving more and more attention in the research of its accident safety from both domestic and foreign scholars.

大客车作为公交系统的重要载体之一，其事故安全性方面的研究正受到国内外学者越来越多的关注。

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This article summarizes both foreign and domestic theories on public transit network optimization, and studies the optimization of bus networks based on the theories.

本文在总结国内外有关公交线网优化理论知识的基础上，对城市公共交通车线网络优化进行了深入细致的研究。

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The public seem to appreciate that the crunch involves both foreign and domestic forces.

ECONOMIST: Bagehot

But the main constraining factor for a US president in both domestic and foreign affairs is public opinion.

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"While the public tends to be much more concerned with domestic issues, both the Democratic and Republican foreign policy establishments tend to be more internationalist and outward-looking, " Boyle says.

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