A Formal Dinner Place Setting的用法和样例：
- His casual style of dress was improper for a formal dinner.
- As it's a formal dinner party, we will have to wear formal dress.
- She was invited to a formal dinner for her years of service.
- Many Americans find silence uncomfortable during a buffet or a formal dinner.
- At a formal dinner, it is not polite to drink wine or liquor by oneself.