[Mira opens her mouth to explain, stops short when she realizes it's going to be harder than she thought, and looks chagrined.]

Your people use bow and arrow, correct? [She doesn't stop for confirmation.] Imagine a very, very large bow that can hit from over the horizon. ...And the arrow explodes when it strikes.

[Okay, yes, that was terrible, but she's a Guard officer, not a schola instructor.]