echinacosid

例句：

1. 1. The echinacosid was a rare and valuable species.
   这种稀有且珍贵的物种是。
2. 2. The echinacosid is a fascinating creature that has been studied for centuries.
   这种迷人的生物已经研究了几个世纪了。
3. 3. The echinacosid is found only in a few areas of the world, making it a protected species.
   这种生物只在世界上的少数地区发现，因此它是受保护的物种。