锻
duàn
to forge
to discipline; wrought
工人每天都在锻造铁器。
gōng rén měi tiān dōu zài duàn zào tiě qì。
The workers forge iron tools every day.
他坚持锻炼身体，所以身体很好。
tā jiān chí duàn liàn shēn tǐ，suǒ yǐ shēn tǐ hěn hǎo。
He persists in disciplining his body through exercise, so his health is very good.