Listen to 怎麼會那麼笨 online. 怎麼會那麼笨 is a Chinese language song and is sung by 張栢芝. 怎麼會那麼笨, from the album Quan Xin Jing Yan, was released in the year 2012. The duration of the song is 4:32. Download Chinese songs online from JioSaavn.