chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles.
主要的环节动物,有两,成对的附上长有刚毛。
chiefly marine annelids possessing both sexes and having paired appendages (parapodia) bearing bristles.
主要的环节动物,有两,成对的附上长有刚毛。
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