他呼吁美国在给该地区带来和平的问题上发挥更加有效的作用。

He called on the United States to play a more effective role in bringing peace to the region.

《柯林斯英汉双解大词典》

面对气候变化的问题，我们应该寻找有效的措施来减少温室气体。

Faced with the problem of climate change, we should find an effective method of reducing greenhouse gases.

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很多社会问题可以通过高素质教育得到有效解决。

A wide range of social issues can be effectively solved by a high-quality education.

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So, let's think about it, and let's think about what we're actually doing when we solve this.

确实更有效率的解决了问题,好，接下来让我们来想想,看我们实际上是怎么来解决这种问题的。

麻省理工公开课 - 计算机科学及编程导论课程节选

One of the things we want to help you do is identify the different classes of algorithms, what their costs are, and how you can map problems into the most efficient class to do the computation.

我们想要教会你们的事情之一就是,学会辨别不同种类的算法，它们的代价是怎么样的，以及怎么样把问题映射到,最有效的算法种类中去做计算。

麻省理工公开课 - 计算机科学及编程导论课程节选

Certainly this is like mid 1990s, we did have the web and the internet but things were slow and it just wasn't really conducive to actually finding things quickly unless you really gave some thought to the problem.

它有些像20世纪90年代，当然我们有网络和互联网,但是做事情很慢,在快速查找东西的时候不是很有效,除非我们对这个问题真正深入思考了。

哈佛公开课 - 计算机科学课程节选