First slide
츲ǻ簡 å 2,620  
츲ǻ Ȩ > 츲 å > ۰Ұ
ɺ
ֿ
Ȱ- ٲٴ , ٲٴ
۰Ұ

̹ ȭ濵а . ȸ̸, ȸа л ϰ ÷ƴ ȸа ڻ ߴ. ι F ε Ȱϰ ִ. տ ʿ ʡ ְ, 깮 ִ.