Gastropoda

例句：

1. 1. The gastropoda are a group of animals that have a soft body and a hard shell.
   水生软体动物是一类具有柔软身体和硬壳的动物。
2. 2. Some gastropoda are edible, while others are poisonous.
   一些水生软体动物是可以食用的，而另一些则是有毒的。
3. 3. Gastropoda are found in many different habitats, including freshwater lakes and rivers.
   水生软体动物分布在许多不同的栖息地中，包括淡水湖泊和河流。