This giant sequoia, a relative of the redwood, is the largest living thing on Earth. 这些美洲杉是红杉的亲戚,也是世界上最大的生物
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
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
The northern forest may be the largest on Earth 地球北部的森林可能地球上最大的森林了
The Taiga circles the globe and contains a third of all the trees on Earth. 针叶林环球分布 占全球所有树木总量的三分之一
are the most extensive forests on Earth. 在地球上分布最为广泛
Some are the largest organisms on Earth 有些树是地球上最大的物种, 其他生命在它面前显得相当渺小
the greatest concentration to be found anywhere on Earth. 到处都是世界上最伟大的聚集