Jiān bù kě cuī de yìzhì shǐ tā dùguò le chóngchóng kùnnan.
His indestructible will carried him through countless hardships.
Tips
usage
摧 is largely classical/literary and rarely stands alone in modern Chinese. It appears in set phrases: 坚不可摧 (indestructible), 无坚不摧 (able to overcome any obstacle), and 摧毁 (cuīhuǐ, the common modern word for 'to destroy').