Ancient Egypt
Ancient Egypt is one of the earliest civilizations in the world, and its history can be traced back to about 3 100 BC.
Five countries
People's Republic of China (PRC), France, the Russian Federation, the United Kingdom of Great Britain and Northern Ireland and the United States of America are permanent members of the United Nations Security Council.
know nothing at all
Don't know is a common word, indicating that you don't know or are not sure.
Coubertin
Coubertin is a famous Peking Opera performer in China, and he is known as the "Peking Opera Master".
Amazon carnival
The Amazon Carnival is one of the biggest carnivals in Brazil, and it is held every year in Manaus, a city in the Amazon basin of Brazil.
Coffee and natural rubber
Brazil is the largest coffee producer in the world. In terms of area, Indonesia is the largest natural rubber producer in the world.
ironware
Ironware is an instrument made of iron, which is one of the important symbols of the development of human society.