I'm helpful at home.

我在家很有用。

youdao

I'm helpful.

我是有用的。

youdao

The reform demands more, but I'm sure it is helpful.

改革要求更多，但我相信它是有益的。

youdao

I'm quite helpful in that regard because I'm not an enterprise sales executive.

WSJ: H-P CEO Meg Whitman Defends Company in Age of Tablets

I'm going to get her counsel and I'm going to try to be helpful to her as much as I possibly can, both with the lawyer, and I've already done what I could about the job, and I think you ought to know that.

CNN

As a developer I'm just getting an idea of how to write helpful applications for this new form of intimate information access.

BBC: Google Glass - will we love it or hate it?