covering a large area; great in amount 广阔的；广大的；大量的 The house has extensive grounds. 这栋房子有宽敞的庭院。 The fire caused extensive damage. 火灾造成了巨大的损失。 She suffered extensive injuries in the accident. 她在事故中受了重伤。 Extensive repair work is being carried out. 大规模的修缮工作正在进行。 an extensive range of wines 各种各样的葡萄酒 The book includes an extensive bibliography of books and articles. 这本书包括大量书籍和文章的参考书目。
including or dealing with a wide range of information 广泛的；广博的 Extensive research has been done into this disease. 对这种疾病已进行了广泛研究。 His knowledge of music is extensive. 他音乐知识很广博。 She has extensive experience in computers. 她在计算机方面经验丰富。
Extra ExamplesAfter extensive reading on the subject she set to work on an article. 对该主题进行广泛的阅读之后她便着手写文章了。 The authorities conducted an extensive investigation into his tax affairs. 当局对他的纳税情况进行了大范围的调查。
Word Originlate Middle English: from French extensif, -ive or late Latin extensivus, from extens- ‘stretched out’, from the verb extendere, from ex- ‘out’ + tendere ‘stretch’.