They give them their colors. 它们使泉水呈现颜色

67. A miracle of time,
    时间的奇迹
68. Primitive life-forms still exist
    原始的生物仍旧存在于
69. In the globe's hot springs.
    地球的温泉中
70. They give them their colors.
    它们使泉水呈现颜色
71. They're called archaeobacteria.
    他们叫做 古细菌
72. They all feed off the earth's heat-
    他们都以地热为生
73. All except the cyanobacteria, or blue-green algae.
    除了蓝细菌即蓝绿水藻以外

来自《家园 第一部分 Home Part1》第 70 行