enduring

Yet few world-class rivers anywhere have etched a more enduring impression on as many millions for as many years.

然而,世界上很少有这样大的河流会给这样多的人留下这样长时间的令人难忘的印象。

It is the reason why the wildcatter, the independent oilman whose test drillings might come up dry 20 times before gushing in the end, is an enduring Texas symbol.

这就是为什么投机商，个体石油商石油喷发前可能要试钻探多达二十次的原因，这也是德州一直以来的标志。