echinoidea造句

例句与造句

1. Echinoidea is one of the important components of echinodermata . thirty - four sea urchins were recorded in this paper , fifteen of them are recorded for the first time in china
   目前对海胆食用、药用价值的研究已日益成为热点，在底栖生态研究方面，海胆也起着重要的作用，因此迫切需要海胆分类方面的整理工作。
2. It's difficult to find echinoidea in a sentence. 用echinoidea造句挺难的