sac

• The poison of a snake is mainly stored in the poison sac of its two front tooth
  蛇咬蛇毒主要储藏于两只门牙的毒囊内。
• I am the sac in las vegas . i have authority over my territory
  我是拉斯维加斯的最高指挥官在我的领域内享有至高无上的权利