油质

例句：

1. 1. The cooking oil isvery fragrant.
   烹饪油非常香。
2. 2.The meat was fried in a mixture ofvegetable and oil.
   肉被用蔬菜和油混合煎了。
3. 3. The car'sengine oil needs to be changed regularly.
   汽车的引擎油需要定期更换。