指纹是灵长类动物的手指末端的表层皮肤上突起的纹线。由于人的指纹会受遗传

指纹是灵长类动物的手指末端的表层皮肤上突起的纹线。由于人的指纹会受遗传与环境因素的影响，因此每个人的指纹都有差异。

Results (English) 1:

Fingerprints are the projections on the surface of the skin of a finger tip primate ridge. As the person's fingerprint will be affected by genetic and environmental factors, so each person's fingerprints are different.

Results (English) 2:

Fingerprints are lines protruding from the surface skin at the end of the finger of primates. Because people's fingerprints are influenced by genetic and environmental factors, each person's fingerprints vary.

Results (English) 3:

Fingerprints are raised lines on the surface skin at the end of a primate's finger. Because people's fingerprints will be affected by genetic and environmental factors, so everyone's fingerprints are different.