Some water experts are now demanding that existing infrastructure be used in smarter ways rather than building new facilities, which is increasingly considered the option of last, not first, resort.

一些水资源专家现在在要求要更明智地使用现有的基础设施，而不是建造新的设施，它逐渐被认为是最后而不是第一选择。

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All now buildings must be made accessible, and existing facilities must remove barriers if the removal can be accomplished without much difficulty or expense.

现在所有的建筑都必须是无障碍的，如果拆除没有太大困难或不用花费过多的话，现有的设施必须拆除障碍。

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The KC-46A tankers will be built using a low-risk approach to manufacturing by a trained and experienced U.S. work force at existing Boeing facilities.

波音公司建造的KC-46A下一代加油机将采用低风险的制造方法，由波音现有的经过培训经验丰富的工厂完成。

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"The new clay courts will really enhance the existing facilities at the university and will help the team at Stirling develop our most talented players, " he said.

BBC: NEWS | UK | Scotland | Tayside and Central | Tennis centre opens after revamp

In addition to the existing Oasis facilities, the scheme will also include a ten-pin bowling hall, multiplex cinema, and restaurants and bars.

BBC: Swindon's Oasis Leisure Centre revamp plans revised

Business investment in the United States by both domestic and foreign firms, whether in the form of new equipment or facilities or the expansion of existing facilities, is a major engine of economic growth and job creation.

WHITEHOUSE: Executive Order 13577--SelectUSA Initiative