oxidation

Rusting is a form of oxidation in which iron reacts with oxygen and water to form iron oxide.生锈是一种氧化形式，其中铁与氧气和水反应形成氧化铁。

Antioxidants in food prevent oxidation reactions that would otherwise cause deterioration in flavour and nutritional value.食物中的抗氧化剂可以防止氧化反应，否则这些反应会导致风味和营养价值变差。