Indicates something more to be added; something else; s.t. continually or still there; indicates a persistence in spite of obstacles.
What else do you have to say?
Even though there aren't many mangoes, there are still some that we can get.
The wind is continually getting stronger.
Why do you need to have a companion?
I'm still going to try to borrow his motorcycle even though he said he wouldn't loan it out.