形容詞 extensive:

1. large in spatial extent or range or scope or quantity
   同義詞：extended
2. broad in scope or content
   同義詞：across-the-board, all-embracing, all-encompassing, all-inclusive, blanket, broad, encompassing, panoptic, wide
3. of agriculture; increasing productivity by using large areas with minimal outlay and labor

1. The castle will undergo extensive and costly renovations.
   那城堡要用鉅資進(jìn)行全面整修。
2. The teacher had both extensive knowledge and profound scholarship.
   先生的學(xué)問博大精深。
3. There is now extensive literature dealing with the First World War.
   現(xiàn)有大量關(guān)于第一次世界大戰(zhàn)的文獻(xiàn)。
4. He has an extensive vocabulary.
   他詞匯很豐富。
5. Moscow television carried extensive coverage of the pullout. A Soviet television correspondence said the convoy had come under fire but did not provide details.
   莫斯科電視為撤軍做了廣泛的報(bào)導(dǎo)，一則蘇聯(lián)電視報(bào)導(dǎo)說車隊(duì)曾受攻擊，但是并未提供細(xì)節(jié)?！?/div>
6. I have benefited a lot from extensive reading.
   廣泛的閱讀使我受益匪淺。
7. The device had undergone extensive testing.
   這種裝置經(jīng)受過廣泛的試驗(yàn)。
8. He selected an extensive reading course this term.
   這個(gè)學(xué)期他選修了泛讀課程。

ex.ten.sive

adj.（形容詞）
Large in extent, range, or amount.
廣大的，廣闊的：廣度的，大范圍的，大量的
Of or relating to the cultivation of vast areas of land with a minimum of labor or expense.
粗放的，大面積耕種的：以最少的勞動(dòng)或費(fèi)用大面積耕種的或與此有關(guān)的

【引伸】
exten.sively
adv.（副詞）
exten.siveness
n.（名詞）