常見例句雙語例句Each fin has a stiff spine.每一個魚翅都有一根硬刺。Named by a 19th-century naturalist, "coelacanth" comes from the Greek for "hollow spine"—a reference to the hollow spines that are part of its fin structure.腔棘魚（coelacanth）由一位十九世紀的博物學(xué)家命名，這個詞來源于希臘語“空心的刺”——指的是它的鰭的一部分由空心的刺構(gòu)成。 返回 fin spine