5 idioms featuring this character
Success through persistence
字面の意味: Iron rod becomes needle
Magnificent military might and valor
字面の意味: Gold spears iron horses
Decisively and firmly without hesitation
字面の意味: Chop nail cut iron
Irrefutable evidence; conclusive proof
字面の意味: Iron evidence like a mountain
Impenetrable defense
字面の意味: Copper wall iron wall