Ferns were the first terricolous vascular plants, and still comprise an important part of primary productivity of ecosystems.
蕨类植
早登陆的维管植，至今仍然生态系统初级生产力的重要
成部
。
Ferns were the first terricolous vascular plants, and still comprise an important part of primary productivity of ecosystems.
蕨类植早登陆的维管植，至今仍然生态系统初级生产力的重要成部。
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类均由互联网资源自动生成，部
过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
