Please give me some explanations: Dubai, Dubai World, what does the Arab world include, and the relationship between Dubai and Arabia.

1. Dubai

Dubai is the second largest emirate in the United Arab Emirates, covering an area of ??3,885 square kilometers, accounting for 5% of the total area of ??the United Arab Emirates. At the same time, Dubai is also the seat of government of the Emirate of Dubai, the capital of the Emirate of Dubai, the second largest city in the United Arab Emirates, known as the "Sunshine City", and is an important port and one of the most important trade centers in the Gulf and even the entire Middle East. Dubai's architecture is some of the most cutting-edge and alternative architecture in the world.

2. Dubai World

Dubai World is the largest corporate entity of the government of the Emirate of Dubai in the United Arab Emirates. It is a corporate group with business spanning real estate and ports. It has been the mainstay of Dubai's economy. The jewel in the crown, operating a port and transport group with operations across the globe, Dubai World is the flag-bearer for Dubai's global investments. As a holding company it plays an important role in promoting rapid economic growth in the emirate. Its purpose is to guide economic growth. It has also launched a series of ambitious real estate and infrastructure projects at home and abroad. Because it was too far ahead, Dubai World Group was in debt of US$59 billion and is now on the verge of bankruptcy, triggering a world economic panic.

3. The Arab World

In the vast areas of southwestern Asia and northern Africa, Arabs are mainly inhabited. This area is called the "Arab World".

The League of Arab States has 22 member states, mainly distributed in West Asia and North Africa, including Palestine, Jordan, Syria, Lebanon, Saudi Arabia, Iraq, Yemen, Kuwait, the United Arab Emirates, Qatar, Bahrain, 12 West Asian countries including Oman; 7 North African countries including Egypt, Algeria, Morocco, Tunisia, Libya, Sudan, and Mauritania; Djibouti and Somalia in eastern Africa and the island nation of Comoros in the western Indian Ocean. The total area of ??the Arab world is approximately 14.26 million square kilometers, accounting for approximately 9.5% of the world's total area. The Arab world has a population of approximately 339 million, accounting for approximately 5% of the world's total population. Egypt has the largest population (81.71 million) and Djibouti has the smallest population (510,000). (As of July 2007, based on CIA? WORLD? FACTBOOK? 2008 data statistics). The ethnic group is mainly Arab. There are also Kurds, Berbers, Turkmens, Nubians and other ethnic groups whose common language is Arabic, and Islam is the state religion of Arab countries. Many people in China consider Iran and Palestine to be Arab countries. ?

4. Dubai is an important business center in the Arab world.