tried and true

例句：

1. 1.This recipe is tried and true; it always turns out well.
   这个食谱是经过验证的；它总是能做好。
2. 2. The old saying "Tried and true" is a reminder that success comes from hard work.
   这句老话“经得住考验”提醒我们成功来自于辛勤工作。
3. 3. He's a tried and true friend who never fails to lift me up when I'm down.
   他是一位经得住考验的朋友，无论何时我遇到困难，他总是能给我力量。