The nascent uptick in home sales hasn't yet translated to a restarting of construction, a driver of jobs and economic activity; the supply of empty homes that built up during the boom remains large.

由于在经济繁荣时期留下了数量庞大的待销售空房，当前房地产行业的复苏并不能对建筑行业，经济和就业产生积极影响。

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These asphalts are used in the construction of built-up roof coverings, the coating of underground transmission pipes and other applications.

这些沥青可用于组合屋面复盖层的建造、地下输送管线的涂层及其他应用领域。

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The paper introduces its general construction, the process of obtaining data and the realization of whole system with the emphases on the built-up of a knowledge base and its explanation strategy.

以知识库建立和解释策略为重点，介绍了系统的总体结构、资料的获取过程、系统的实现。

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The 1978 constitution duly allowed for a more representative structure, gradually built up in law and still under construction.

ECONOMIST: A survey of Spain

Construction, which will also see a new motorway junction built, had been held up following the discovery of rare dormice on the site.

BBC: Lord Richard Attenborough