锯齿状饰边

例句：

1. 1. The car's body hasa serrated edge that makes it difficultto scratch.
   这辆车的车体有一个锯齿状的边缘，很难刮伤。
2. 2. Theknife blade has a serrated edge thatis sharp and durable.
   这把刀的刀刃有锯齿状的边缘，既锋利又耐用。
3. 3. The cutting board has aserrated edge that helps to prevent slipping while cooking.
   切菜板有锯齿状的边缘，有助于在烹饪时防止滑倒。