I know I have a dollar left in my pocket.

③ eke out a living on expired food.

In the end, I only have one dollar left, but I can't bear to spend it, because it is full of autographs of my favorite singers.

After some hesitation, I finally made up my mind.

3. The book describes my true love and reluctance for the last dollar, highlights the importance of this dollar to me, describes the difficulty of making this decision, highlights the significance of this decision, and highlights the theme of the article through detailed description.