齿形的

例句：

1. 1. The dog has a toothed collar around its neck.
   这只狗脖子上围着一个有齿的颈圈。
2. 2. The baby had a toothed smile on her face.
   婴儿脸上露出了一个有齿的笑容。
3. 3. The caterpillar has a toothed shell to protect itself from predators.
   毛毛虫有一个有齿的壳来保护自己免受捕食者的伤害。