很有用

The computer is useful in processing data.

电子计算机在处理资料方面很有用。

Her lectures are very useful, but they’re dry as dust.

课很有用，可是却乏味得要死。

The book is valuable for my purpose.

这本书对我很有用。

A laptop would be really useful for when I’m working on the train.

我在火车上工作时, 便携式电脑真很有用。

It pays to advertise.

登广告很有用。

The distinctives of Reformed theology and practice are useful only to the degree that they undergird and clarify the gospel, the evangel.

革宗神学与实践特点是很有用，但也只在一个程度上，即加强并澄清福音与福音要点。

For example, Digital's Lectrice file format included a pre-rendered bitmap representation of each page to allow for quick page turns, a prerequisite for the thumbing navigation metaphor.

要回忆起停止阅阅上一次引用地方，这种感受就变得很有用了。