extravagance的音標是[?k?str?v?g?ns]，翻譯為“浪費；奢侈；放縱”。

速記技巧：extr-av-ag-ance，其中-av是“花費”的意思，整個單詞可以理解為“花費很多”的意思。

Extravagance這個詞源自拉丁語，意為“過度使用”或“浪費”。其詞根“extra”表示“超過，額外”的意思，而“vagus”則表示“漫游，流浪”的意思。

變化形式：在英語中，Extravagance通常被拼寫為extravagance，其復數形式為extravagances。

相關單詞：

1. abundance：這個詞與Extravagance有相似的含義，都表示過度使用或浪費。Abundance意味著“豐富，充裕”，而Extravagance則意味著“過度使用，浪費”。

2. spendthrift：這個詞表示一個揮霍浪費的人，其詞根與Extravagance相同，都表示過度使用或浪費。

3. lavish：這個詞表示慷慨的，大方的，但同時也暗示著過度或不節制。

4. prodigality：這個詞表示浪費或揮霍的行為。

5. extravagant：這個詞表示過分的，不合理的，通常用于形容花費或情感。

6. wasteful：這個詞表示浪費的，不珍惜的。

7. exorbitant：這個詞表示過高的，過分的，通常用于形容價格或費用。

8. extravagantly：副詞形式，表示過度地，過分地。

9. extravagance-minded：形容詞形式，表示揮霍浪費的傾向。

10. lavishly：副詞形式，表示慷慨地，大手大腳地。

以上單詞都與Extravagance有密切的聯系，都表示過度使用或浪費的行為。

常用短語：

1. extravagant spending

2. excessive consumption

3. wasteful spending

4. luxurious lifestyle

5. extravagant behavior

6. reckless spending

7. profligate spending

例句：

1. He is known for his extravagant lifestyle, which involves frequent shopping trips and expensive dinners.

2. The company"s excessive spending has led to a decline in profits.

3. She is always wasteful with money, buying things she doesn"t need just because they are cheap.

4. His extravagant behavior has caused him to struggle financially.

5. The government"s profligate spending has led to a debt crisis.

6. We need to curb our extravagant spending habits to avoid going into debt.

7. She is known for her reckless spending, always buying things she can"t afford.

英文小作文：

Extravagance is a lifestyle choice that can have negative consequences for individuals and society. When we indulge in extravagant purchases and lavish lifestyles, we can end up facing financial difficulties and even debt crises. At the same time, excessive consumption can also lead to environmental degradation and resource depletion, which can have long-term impacts on future generations. Therefore, it is important to be mindful of our spending habits and strive for a more sustainable lifestyle that prioritizes frugality and responsibility. By embracing a more moderate approach to consumption, we can help create a healthier and more sustainable world for ourselves and future generations.