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the Hadean eon
The Hadean eon is considered the first era of Earth, lasting from about 4.6 billion years ago to 4 billion years ago.
state of emergency (governmental decree)
The government declared a state of emergency to prevent the spread of the new coronavirus.
Cultural Revolution (Great Proletarian Cultural Revolution)
The Cultural Revolution is a part of China's history.
lime sulphur
This lime sulphur is very effective in preventing pests and diseases in fruit trees.
石灰硫黄合剤: lime sulphur
Lime sulphur is often used to prevent pests and diseases in fruit trees.
cultural diversity
It is important for us to respect cultural diversity and understand each other's differences.
UNESCO (the United Nations Educational, Scientific and Cultural Organization)
UNESCO is an international organization that promotes the development of education, science, and culture around the world.
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