They had faced one difficulty after another with bravery and dedication.

他们曾以勇敢与执著面对了一个又一个困难。

《柯林斯英汉双解大词典》

The pioneers are courageous indeed, overcoming one difficulty after another.

这些开拓者的确有勇气，他们克服了一个又一个的困难。

youdao

Thee pioneers are courageous indeed, overcoming one difficulty after another.

这些开拓者的确有勇气，他们克服了一个又一个的困难。

youdao

For five days, through one crisis after another, the Apollo 13 crew and mission specialists on the ground worked through each difficulty.

VOA: standard.2010.04.04