acanthocephalan

例句：

1. 1. The spider's acanthocephalan is a unique feature of its web.
   蜘蛛的蛛网是其独特特征。
2. 2. The acanthocephalan on the spider's web is intricate and mesmerizing.
   蜘蛛网上的蛛网结构复杂迷人。
3. 3. The acanthocephalan is made up of several layers, each with their own purpose.
   蛛网由多层组成，每层都有其特定功能。