flavane

例句：

1. 1. The flavanols in red wine are believed to have health benefits.
   红酒中的花青素被认为有健康益处。
2. 2. Flavanols found in green tea are known for their antioxidant properties.
   绿茶中发现的花青素因其抗氧化性质而闻名。
3. 3. Flavanols are also present in fruits and vegetables, providing a range of health benefits.
   花青素也存在于水果和蔬菜中，提供了一系列健康益处。