comcept of leaf class
... 叶类学说 concept of leaf-class ; class 叶类说 comcept of leaf class 潜叶类 eaf miners ...
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叶类学说 concept of leaf-class
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科学家说，食草恐龙的主要食物大概是楔叶类、类似于蕨类的植物。这些植物在史前的沼泽地带十分丰富，而且很有营养。
A staple part of the vegetarian dino-diet was probably horsetails, fern-like plants that were abundant in prehistoric swamps and highly nutritious, said the scientists.
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