Correct

百炼成钢

/ bǎi liàn chéng gāng /
Strokes

Definition

to be tempered into a steel

Example

Definition

be made into fine steel through repeated tempering—be forged in repeated struggles; become toughened and hardened

1
Zài
jiān
艰苦
huánjìng
环境
bǎiliànchénggāng
百炼成钢

be tempered/steeled in hardships