经典：
S03E08：Camping，Sheldon look after Penny。9.9分。//////////
S03E09，Sheldon revenge Kripke，Wolowitz sing for Bernadette。9.8分。//////////
S03E10，Penny learn physics。9.6分。//////////
S03E15，Lenerd go to Switzerland in Valentine‘s Day（with Raj）。9.5分。//////////
S03E17，The Ring。9.8分。//////////
S03E21，Dr.Slutbunny。9.9分。//////////
S03E22，Lenerd and Sheldon’s first met 。10.0分//////////
S03E23，Sheldon and Amy’s first met 。9.5分//////////
23集全
