cod oil

例句：

1. 1. Cod liver oil is a popular supplement for heart health.
   鳕鱼肝油是受欢迎的心脏健康补充品。
2. 2. The fisherman used cod liver oil to keep his hands from getting cold.
   渔民使用鳕鱼肝油来防止手部变冷。
3. 3. The doctor prescribed cod liver oil for the patient's vitamin deficiency.
   医生为病人开出了鳕鱼肝油作为维生素缺乏的处方药。