contains three of the tallest trees on Earth. 世界树木高度排行前三名的树都在这里

71. These conifers grow at ten times the rate of those near the Arctic
    这些树木的生长速度是北极圈附近树木的10倍
72. and they live for thousands of years.
    寿命更可达数千年
73. One grove of redwoods in California
    加利福尼亚的这块红杉林
74. contains three of the tallest trees on Earth.
    世界树木高度排行前三名的树都在这里
75. This one is over a hundred meters high, the size of a thirty story building.
    这颗超过100米的树有30层楼房那么高
76. These forests were growing here long before humans walked the Earth.
    这片森林远在人类直立行走之前就出现了
77. They were in their prime twenty million years ago
    2000万年前它们就已经在这里

来自《行星地球 第一季 第十集 Planet Earth S01E10 季节森林》第 74 行