a matter of record的用法和样例：
- As a matter of fact, I've never been there before.
- A birth certificate or a marriage license is a matter of record.
- It is a matter of record that nobody has ever failed this examination.
- It's a matter of record that there were ten bankruptcies in the town last year.
- It is a matter of life and death for them.
- It may be a matter of months before it's ready.