bract的翻译，读音

例句

Red light could increase the ornamental value of flower, flower diameter, bract area, content of cyanidin were all increased. 红光能提高花头的观赏品质，使花径、苞叶面积、花青素含量增加； 。

Each bract usually subtending a small dichasium with 1-3 male flowers; 通常的每苞片对着一小的二歧聚伞花序具1-3雄花； 。

To decide the effects with simple component, the bract of Cornus chinense Wanger was the best medicine part. 单纯以此组分确定功效，川鄂山茱萸以总苞片入药最佳； 。