Final answer:
In To Kill a Mockingbird, Mr. Ewell's statement 'one down and two more to go' means that he wants to harm or kill two more people after the death of Tom Robinson.
Step-by-step explanation:
In the book To Kill a Mockingbird, Mr. Ewell's statement 'one down and two more to go' refers to his desire to harm or kill more people. This statement is made after the trial of Tom Robinson, a black man who is falsely accused of raping a white woman. Tom is killed while trying to escape prison, and Mr. Ewell sees it as a victory. He means that he wants to harm or kill two more people who he sees as a threat or an enemy.