A tried and true friend的用法和样例：
- I have tried and true friends here.
- I have tried and true friends here. It would need more than twice the salary you offer to tempt me to move elsewhere.
- A tried and true champion of his race, Rigwarl has unsuccessfully led the fight to defend his land against the onslaught of the scourge.
- Picture or metaphoric thinking through tarot is a tried and true way for innovations that work.