本文介绍了三种基本的指纹图案：环形(loop)、弓形(arch)和涡旋形(whorl)。这些独特的图案从出生起就保持不变，并且每个人指纹上的线条和漩涡都是独一无二的。
The lines and swirls on your fingertips make fingerprints.
There are three fingerprint patterns.
The first is called the loop.
The second is the arch.
The third is the whorl.
Your finger prints stay the same all your life.
Each person's fingerprints are different.
loop
whorl
arch
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