Complex sentence: The People's Republic of China, at present, has two Special Administrative Regions, Hong Kong and Macau, and they should not be confused with Special Economic Zones, which are regions fully under the administration of the Central People's Government.
Split into simpler sentences: The People's Republic of China, at present, has two Special Administrative Regions, Hong Kong and Macau. They should not be confused with Special Economic Zones, which are regions fully under the administration of the Central People's Government.