You really need a knife with a serrated edge for cutting bread.

你真的需要一把有锯齿刃的刀子来切面包

Bread knives should have a serrated edge.

面包刀的刀刃应带有波浪齿。

The plant has serrated and hairy leaves.

这种植物长着锯齿状的毛茸叶子。

Tree branches are serrated with red bud teeth.

树枝装点上了红色花芽而成了锯齿状。

Install the serrated retainers at the ends of the cover.

在盖的末端安装蛇型固定装置。

Let's give an example, though: the type of an Edge might be serrated or smooth.

尽管如此，让我们来看看一个实例：Edge的类型可能是锯齿的或平滑的。