xiān / kǔ / hòu / gān / de / jīng / shén / bāng / zhù / tā / kè / fú / le / suǒ / yǒu / kùn / nán

先苦后甘的精神帮助他克服了所有困难。

The spirit of enduring short-term pain for long-term gain helped him overcome all difficulties.