用英文解释回答一下what is international business？

International business is a term used to collectively describe all commercial transactions (private and governmental, sales, investments, and transportation) that take place between two or more countries. Private companies undertake such transactions for profit; governments undertake them for profit and for political reasons.[1]

At the other end of the spectrum, large firms with physical presence in multiple countries are sometimes called multinational corporations (MNC's). Well known MNCs include fast food companies McDonald's and Yum Brands, vehicle manufacturers such as General Motors and Toyota, consumer electronics companies like Samsung, LG and Sony, and energy companies such as ExxonMobil and BP. Most of the largest corporations operate in multiple national markets.

Areas of study within this topic include differences in legal systems, political systems, economic policy, language, accounting standards, labor standards, living standards, environme