fin spine

常见例句

双语例句

• Each fin has a stiff spine.
  每一个鱼翅都有一根硬刺。
• 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.
  腔棘鱼（coelacanth）由一位十九世纪的博物学家命名，这个词来源于希腊语“空心的刺”——指的是它的鳍的一部分由空心的刺构成。
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