bigger bang for a buck的用法和样例：
- He tried to get a bigger bang for a buck.
- "For example, programs that target people high in neuroticism may get bigger bang for the buck than more widespread outreach efforts," he said.
- Borrowed by a viewer for an hour for a buck.
- Excuse me. Can I have change for a buck?
- All of them coexisted for a few instants after the Big Bang.