철로 만들었어요.
cheollo mandeureosseoyo.
It's made of iron.
철이 녹슬었어요.
cheori nokseureosseoyo.
The iron has rusted.
여름철이에요.
yeoreumcheolieyo.
It's the summer season.
제철이에요.
jecheolieyo.
It's in season.
