小齿状突起

例句：

1. 1. The tiny denticle on the corner of her mouth is a distinctive feature.
   她嘴角的小突起是其独特的特征。
2. 2. The scientist found a denticle-like protrusion in the sample.
   科学家在样本中发现了类似突起物的东西。
3. 3. The denticle-like protrusion was so small that it could barely be seen.
   这个类似突起物的东西太小了，几乎看不见。