But he believes that theory, to be of use, must keep its feet on the ground.

但他相信，具有实用价值的理论必须要能与实际的生活情况相结合。

youdao

The WHO approach is flexible enough to be of use in countries with vastly different historical, social and economic contexts.

世卫组织的措施具有足够的灵活性，可用于历史、社会和经济方面差异极大的国家。

youdao

So although tiny wormholes do exist, and it may be possible to inflate one some day, it won't last long enough to be of use as a time machine.

所以，即使微小的虫洞确实存在，某一天也可能膨胀，但它并不能持续足够长时间供时间机器使用。

youdao

After Senate approval of his treaty with Lord Ashburton, Webster decided that he could be of no more real use to the administration.

VOA: special.2009.02.05

Making use of only our own reasoning, as opposed to whatever answers we might be given by divine revealed authority.

只用你自己的推测，与所有答案截然相反,我们可能被授予神圣的权威。

耶鲁公开课 - 死亡课程节选

They like to--when they're computing the investment yield, they want to be completely honest and not use any rules of thumb.

当他们计算投资收益率的时候,他们需要完全精确,而非用经验公式

耶鲁公开课 - 金融市场课程节选

Furthermore, Winter recognized that to be of use to the developing world, it had to be built from parts that were easily accessible.

CNN: Off-road wheelchair offers freedom for disabled poor

The central assumption of his project was that aggregating the data from these groups would present a picture of violence in El Salvador complete enough to be of use to investigators.

FORBES: Patrick Ball on the Perils of Misusing Human Rights Data

He is also charged with having a document likely to be of use to terrorists, namely a list of vehicle registration numbers found at a house he used to live in overlooking the entrance to the barracks.

BBC: Ballykinlar Army base