It is time for colleges and universities to rethink their business models, cut cost, and restructure the tuitions to affordable levels.

现在该是高等专科学校和大学重新考虑它们的商业模式、降低成本，并把学费调整到不甚昂贵的水平的时候了。

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Moreover, the business models to justify the time and cost of adding wireless services are embryonic.

此外，这些商业模型证明了增加无线服务所用时间和成本的合理性，但它们仍处于萌芽阶段。

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The increasing use of new tools such as computerised virtual design helps cut the cost and length of time needed to bring new models to market, but it is still an expensive process.

像电脑虚拟设计这样的新工具使用的增加大幅缩小了新车型开发的费用和周期。不过这些新工具依然价格不菲。

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This can save automakers significant development time and cost by enabling rapid implementation of in-vehicle systems across diverse vehicle models.

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