常见例句用作名词 (n.)Ligules are important taxonomic features in grasses.在禾本科植物中，叶舌是重要的分类学特征。In grasses the ligule occurs at the junction of the leaf sheath and lamina.在禾本科植物中，叶舌生长在叶鞘和叶片的交界处。 返回 grasses