名词
中文翻译：蕨类植物的时期
同义词：
['fern period', 'fern age']
例句：
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1.The age of ferns is a time when the forests are lush and green.
蕨类植物时代是森林茂盛、绿色的时候。
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2.The age of ferns is also known as the Mesozoic Era.
蕨类植物时代也被称为中生代。
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3.During the age of ferns, many new species of plants were discovered.
在蕨类植物时代，发现了许多新的植物物种。