Odonata

例句：

1. 1. The otter is one of the most fascinating animals to observe in the water.
   河狸是观察水中最有趣的动物之一。
2. 2. Odonata are known for their unique coloration and patterning.
   水生昆虫以其独特的色彩和图案而闻名。
3. 3. Many species of Odonata have been found in freshwater habitats.
   许多种水生昆虫已在淡水栖息地发现。