extensive的音標為[?k?stens?v] ，基本意思是“廣泛的，廣闊的”，也可以表示“大量的，廣泛的”。速記技巧可以通過詞根詞綴記憶法來記憶。

Extensive這個詞的詞源可以追溯到拉丁語和希臘語，意為“廣泛的，大量的”。它的詞形變化形式主要包括復數(shù)形式（Extensivus, Extensive）和過去分詞形式（Extensum）。

相關單詞：

Extensive reading：廣泛閱讀，指的是閱讀大量的書籍，以擴大知識面和增強理解能力。

Extensive studies：廣泛的研究，指的是對某一領域或多個領域進行深入的研究。

Extensive coverage：廣泛的覆蓋面，指的是報道或調(diào)查涉及的范圍很廣。

這些單詞都與extensive這個詞有關，表示涉及的范圍廣、數(shù)量大的意思。在英語中，extensive這個詞常用于描述某事物涉及的范圍、數(shù)量或程度，強調(diào)其廣泛性和全面性。這個詞的使用頻率很高，在各種語境中都有著廣泛的應用。

常用短語：

1. extensive research

2. extensive knowledge

3. extensive coverage

4. extensive damage

5. extensive network

6. extensive experience

7. extensive resources

例句：

1. We conducted extensive research on the topic and found that the best solution was to use a specific algorithm.

2. The teacher has extensive knowledge of the subject and can answer any question with ease.

3. The storm caused extensive damage to the building, leaving it in ruins.

4. The network has extensive coverage and is accessible in most areas of the country.

5. After years of extensive training, he has gained a wealth of experience in the field of business management.

6. The company has extensive resources that allow it to compete effectively in the market.

英文小作文：

The Importance of Extensive Reading

Reading is an essential skill that helps us acquire knowledge, understand different perspectives, and develop critical thinking. Extensive reading, on the other hand, refers to reading for pleasure, information, and growth beyond the scope of a textbook. It involves immersing yourself in a book, exploring its themes, characters, and structure, and gaining insights that can enrich your life.

Extensive reading can be a valuable tool for personal growth and development. It helps us develop a deeper understanding of a subject, broaden our horizons, and improve our vocabulary and grammar skills. It also provides us with an opportunity to connect with other cultures and learn from their perspectives, which can be beneficial in various aspects of life, such as career development and interpersonal relationships.

Moreover, extensive reading can be a great way to unwind and relax after a tiring day. It allows us to immerse ourselves in a world that is far away from our daily stresses and responsibilities, and provides us with an opportunity to recharge our batteries. It can also help us develop a habit of reading that can be beneficial for our long-term health and well-being.

Therefore, it is essential to make time for extensive reading and prioritize it in our busy schedules. It can be a rewarding experience that can help us grow personally and professionally, as well as improve our overall quality of life.