常见例句The month-old thornback ray is just 12 centimetres long and is one of a dozen hatched from eggs known as "mermaid's purses". 这个只有1个月大的团扇鳐仅12厘米长，是从一群被称为“美人鱼钱包”的卵中孵出的十几条中的一条。thornback Raja clavata 棘背鳐thornback ray 团扇鳐 返回 thornback