pig liver fat

例句：

1. 1. The pig liver fat is rich in vitamin A, which is good for eyesight.
   猪肝脂肪富含维生素A，对眼睛有益。
2. 2.The pig liver fat is also a good source of protein and iron.
   猪肝脂肪也是蛋白质和铁的良好来源。
3. 3.The pig liver fat is often used as an additive in food products to improve their nutritional value.
   猪肝脂肪常被用作食品添加剂，以提高其营养价值。