《后汉书·列传·东夷列传》
坦娄部族人口虽少，但人勇猛有力，他们生活在险要山地，而且擅长射箭，射则中人眼睛。
种众虽少，而多勇力，处山险，又善射，发能入人目。
Although the Tanlou tribe has a small population, its people are brave and strong. They live in rugged mountains and are skilled in archery, hitting people in the eye with their arrows.