行业是指生产同类产品或提供同类服务的企业组成的体，也可以指某一特定领域内的经济活动。在商业领域中，行业通常被分为不同的分类，以便更好地了解和比较不同企业之间的差异。

英文：Industry refers to a collective of enterprises that produce similar products or provide similar services, or it can refer to economic activities within a specific field. In the business world, industries are often divided into different categories for better understanding and comparison of differences between different enterprises.

怎么读（音标）：

英文：[ˈɪndəstri]

用法：

“行业”一词通常作为名词使用，可以用来指代特定领域内的经济活动或企业体。它也可以作为形容词使用，表示某个产品或服务属于特定的行业。

例句1-5句且中英对照：

1. The technology industry is constantly evolving and innovating.

科技行业不断发展和创新。

2. The automotive industry is facing challenges in transitioning to electric vehicles.

汽车行业在转向电动汽车方面面临挑战。

3. She works in the fashion industry as a designer.

她作为设计师在时尚行业工作。

4. The pharmaceutical industry plays a crucial role in providing medication for people's health.

制药行业在保障人们健康方面扮演着重要角色。

5. The agriculture industry is essential for feeding the world's growing population.

农业行业对于满足世界日益增长的人口的需求至关重要。

同义词及用法：

1. Sector: This term is often used to refer to a specific part or division of an industry, such as the technology sector or the healthcare sector.

2. Field: This word can be used interchangeably with industry to refer to a specific area of economic activity, such as the field of education or the field of finance.

3. Business: While not an exact synonym, this word can also be used to refer to a particular industry, especially in a more general sense.

4. Trade: Similar to business, this term can be used to describe a particular industry or economic activity, particularly in terms of buying and selling goods or services.

5. Market: This word can be used to refer to a specific industry or economic activity, but it often focuses on the demand and supply of goods and services within that industry.

编辑总结：

行业是指生产或提供类似产品或服务的企业体，也可以指特定领域内的经济活动。它通常被分为不同的分类，以便更好地了解和比较不同企业之间的差异。除了作为名词使用外，它也可以作为形容词来描述某个产品或服务属于特定的行业。同义词包括sector、field、business、trade和market。