他们想做某事来改变现状。

They want to do something to change the current situation.

我们都想做某事来改善环境。

We all want to do something to improve the environment.

我想做某事，但不知道从哪里开始。

I want to do something, but I don't know where to start.

如果你想做某事，你就应该去尝试。

If you want to do something, you should go for it.

她想做某事来帮助那些有需要的人。

She wants to do something to help those in need.

指想做某事的感觉或愿望.

ABmotivebfor doing something is a feeling or desire within people which makes them act.

我想做某事。

I feel like doing sth.

不要为做某事而做，要因为你想做它才做。

Don’t do something for the sake of doing it, do it because you want to.

你想做某事吗？

Would you like to do. . . ?

方便的时候做某事，想做多久就做多久。

To do something in your own time and take as long as you want to. It could also mean to do something outside of other commitments.