zài / gōng / sī / zuì / kùn / nán / de / shí / hou / tā / tǐng / shēn / ér / chū / chéng / dān / qǐ / yī / zhù / qíng / tiān / de / zhòng / rèn

在公司最困难的时候，他挺身而出，承担起一柱擎天的重任。

When the company was in its most difficult period, he stepped forward and took on the crucial responsibility.