practical use短语⁵¹⁵²⁸ 基本例句 实际运用／用途 Engineers went to work on Spencer's hot new idea, developing and refining it for practical use. 工程师们沿着斯宾塞这个新想法继续前进，将其发展改善以符合实用。 yeeyan It was not until a decade ago that Nasa started taking an interest in the substance and putting it to a more practical use. 直到十年前，美国太空总署开始对这种物质产生兴趣并将其投入实用。 yeeyan