目的：研究300名正常白族人指嵴纹数和t三叉，为医学、遗传学、人类学提供正常参数。
Objective: to study the finger ridge count and t triangle of 300 normal people of Bai Nationality, and to provide normal parameters for medicine, genetics and anthropology.
因为跑了很长的里程数，每个轮胎都磨损了而且胎纹深度都变的很浅了。
Because of long mileage, every tire wears away and the tread pattern depth becomes very shallow.
数小时的盯着电脑屏幕会增加眼角的鲏纹。
Hours of staring at a computer screen will encourage crows' feet.
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