Link doesn't say anything. He just summons another glowing blue bomb, and looks at her - which is answer enough, really.

The fact that he then runs around the side of the first try, using it for cover while he aims his bomb towards the second, is probably also a pretty good answer. Getting the bomb underneath worked pretty well last time, so he tries that again.

If Harley times her rocket launcher just right, she might be able to hit it at the same time Link's bomb rolls under.