a shotgun marriage的用法和样例：
- Yet, thanks to President Obama's auto task-force and a shotgun marriage with Fiat, Chrysler motors wearily on.
- A shotgun leans against the table.
- They are going to have shotgun marriage next week.
- I asked whether he had a shotgun.
- My parents had a shotgun wedding and had only been married a few months before I was born.