恐龙一种，主要生活在中生代时期的陆栖动物，是庞大的食肉或食草爬行类动物，属龙盘目与鸟盘目，已绝种。

Dinosaur, any of various extinct, often gigantic, carnivorous or herbivorous reptiles of the orders saurischia and ornithischia that were chiefly terrestrial and existed during the Mesozoic era.

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这是盘龙目爬行动物的一科。

It is a family of reptiles of the order pelycosaur ia.

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当询盘时应从问题或你想要问的问题开头，则读询盘信的人就会一目了然。

When making an enquiry, begin with the questions or questions you want to ask, your reader then knows at once what you enquiry is about.

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