常見例句The month-old thornback ray is just 12 centimetres long and is one of a dozen hatched from eggs known as "mermaid's purses". 這個(gè)衹有1個(gè)月大的團(tuán)扇鰩僅12厘米長(zhǎng)，是從一群被稱爲(wèi)“美人魚錢包”的卵中孵出的十幾條中的一條。thornback Raja clavata 棘背鰩thornback ray 團(tuán)扇鰩 返回 thornback