a law firm的用法和样例：
- She worked as a typist in a law firm.
- The return address was a law firm in Seattle.
- The total amount of business done in a specific period, as by an advertising agency or a law firm.
- I've just had some good news: I've been offered a job in a law firm.
- Perjury伪证: When a law firm advertises, “We're only here to help”.
a law firm的相关资料：