This is the 6365th most frequent Chinese word.
打铁
"打铁" means "to forge iron."
Here, '打铁' is used metaphorically to mean taking action promptly while the conditions are favorable.
俗话说:打铁要趁热。
As the saying goes: Strike while the iron is hot.
In this sentence, '打铁' is used literally to mean blacksmithing or forging iron.
唐朝时,有不少人以打铁为生。
During the Tang Dynasty, many people made a living by blacksmithing.
Here, '打铁' is used in a simile to emphasize the strength and resilience of a person's will.