CHINESE  TEACHER

armor; first; armor plating; shell or carapace; bladed leather or met; (of the fingers or toes)  nail; (used for an unspecified person or thing) ; first (in a list，as a party to a contract，in terms of quality etc) ; first of the ten heavenly stems 十天十天干[shi2 tian1 gan1]

bad; broken; spoiled; to break down