trigonia

例句：

1. 1. The trigonia is a small plant that grows in shallow water.
   三叶藻是一种生长在浅水中的小植物。
2. 2. Trigonia is a type of algae that has been used in traditional medicine for its medicinal properties.
   三叶藻是一种具有药用性质的海藻，被传统医学用于治疗。
3. 3. In ancient times, trigonia was often used as a food source and a source of income for fishermen.
   在古代，三叶藻常被用作食物来源和渔民的收入来源。