我想借此机会为公益事业聊尽绵薄。

I would take advantage of this opportunity to contribute my mite to the public service.

我竭尽绵薄将我仅有的钱都给他了。

I gave him what little money I had.

于是我与学校的其他同学也成立了志愿队，在学校和市区号召大家为汶川献上一份绵薄力量。

So I and my classmates has set up a volunteer team, in schools and outside school we call for a modest force presented Wenchuan.