目标明确是十分有用的。

It was very useful to have a clear goal.

youdao

它们如今仍对人们的生活十分有用。

They are still useful today in people's life.

youdao

这些俚语中的一些被证明是十分有用的，因而逐渐进入了上流社会。

A few of these slang terms prove so useful that they graduate into respectable society.

youdao

The other reason we teach it here, in addition to it being simple, is that it's incredibly useful.

这种思想的原因之一，另一个原因,是除了简单它还十分有用。

麻省理工公开课 - 计算机科学及编程导论课程节选

And I think frankly that is irresponsible to completely throw away this useful tool

所以，我认为，完全放弃这样一种有用的工具也是十分不负责任的。

需要动物实验吗？ - SpeakingMax英语口语达人

It turns out that cells receive signals or information from the rest of the body in a variety of ways, but there's one way in particular that's a very useful way for thinking about how cells receive most information.

研究证明,细胞内有很多,接收体内其他部位信号或者信息的方式,但有一种特定的方法十分有用,这种方法使细胞能最大程度地接受信息

耶鲁公开课 - 生物医学工程探索课程节选