Give someone a hand (part 2)

As mentioned in the previous post, to give someone a hand with something is to help him or her. I think this expression comes from "helping hand. " The key to it, though, is with. For example: Could you give me a hand with this translation? Or: Her bags were very heavy but nobody stopped to give her a hand with them. When we understand the context, we can subtract with. I need help here. Can you give me a hand?