adj.经过检验而可靠的,靠得住的;
例句:
There's a lot in sales and marketing that tried and true.
在销售和营销中有很多这样的真实例子.
Good afternoon . tried and true rent-a-car.
你好, TriedandTrueRent - a - Car出租车公司.
Now you can apply tried and true principles to your own game.
现在你能把挥杆八步法的真正原理应用到你自己的高尔夫运动中了.