a formal denial的用法和样例：
- A formal denial of the opposing party's allegation of fact in a suit.
- We were invited to a formal luncheon.
- the buzz of excitement was so great that a formal denial was issued.
- I'm composing a formal reply to the letter.
- a formal denial of the opposing party's allegation of fact in a suit
- Loosen up, this isn't a formal occasion.