低碳经济正在成为21世纪世界经济发展的重要趋势。的翻译：Low-carbon economy are become significant trends in the development of the 21st century world economy. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Low-carbon economy is becoming an important trend of world economic development in the 21st century.

Low-carbon economy are become significant trends in the development of the 21st century world economy.

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Low-carbon economy is becoming a 21st century economic development of the world important trends.

Low-carbon economy are become significant trends in the development of the 21st century world economy.