cheorongseong
impregnable fortress
forteresse imprenable ; bastion inexpugnable
그 성은 철옹성과 같아서 누구도 침입할 수 없다.
geu seongeun cheolongsung-gwa gataseo nugudo chimiphal su eopda.
That castle is like an impregnable fortress, and no one can invade it.
More words starting with 철