scaffold shark的用法和樣例：
例句
- With a mouthful of three-pointed teeth, the frilled shark may be a fearsome hunter, but it's considered harmless to humans.
滿口的三角牙證明皺鰓鯊是兇猛的捕食者，但科學家認為它不會攻擊人類。 - Believed to have changed little since prehistoric times, the frilled shark is linked to long-extinct species by its slinky shape and by an upper jaw that is part of its skull.
科學家認為，皺鰓鯊自史前時期以來在外貌上的變化幾乎很少。
