它不仅指生产、生活、工作方面的节约，而且也包含节约人类创造出来的财富和尚未开发的自然资源；
They refers not only to the thrifty of productivity and work but also to that of created assets and undeveloped natural resources.
报告说，非洲需要基础设施，正好中国也需要自然资源，而且中国建筑行业在全球具有竞争力。
The report says Africa's need for infrastructure is matched by China's need for natural resources and its globally competitive construction industry.
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