科研之友
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摘要
<正>海岸红杉是地球上现存最高的树木，也是地球上最古老的生物之一。它们曾一度遍布于加利福尼亚州的海岸，但现如今只剩下不到原始面积的十分之一。主题语境：生态环境篇幅：359词建议用时：7分钟1 There is nothing like a coast redwood. It is the planet’s tallest tree, up to heights of more than 320 feet into the sky. With trunks (树干) that grow to more than 27 feet wide, they can live for over 2,000 years. Some of them living today were alive during the time of the Roman Empire.
