1. Cool.

2. Oranges are the fruit of the orange tree, a citrus plant in the Rutaceae family. They are sweet, sour and cool, and contain a large amount of vitamin C, vitamin D, cellulose, protein, organic acids, sugars, calcium, iron, Phosphorus and other ingredients have high nutritional value and edible value. Moderate consumption is good for human health, so oranges are a cooling fruit.