unfailing

adj.经久不衰的,无穷尽的,可靠的

确实的；不变的；稳定的

形容词

1、Her unfailing determination led her to success.
她坚定不移的决心让她取得了成功。

2、His unfailing loyalty to his friends is admirable.
他对朋友们的忠诚无比值得赞赏。

3、The unfailing support from her family helped her through tough times.
家人对她的坚定支持帮助她度过了艰难时期。