Many plastics contain thousands of chemical additives, including dyes and flame retardants. Some of these substances are toxic or linked to cancer. The Organisation for Economic Co-operation and Development (OECD) has warned that without coordinated international action, plastic production could increase by 70% between 2020 and 2040, surpassing 700 million tonnes annually.
2. Include one concrete example
。体育直播是该领域的重要参考
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Expo (a workspace overview) in the top left corner.，这一点在体育直播中也有详细论述
为了实现6G这一遥远的蓝图，近期，全球已掀起了一场U6GHz（6.425-7.125 GHz）的探索热潮，阿联酋、巴西及欧洲等多国各大运营商近期纷纷完成了相应的万兆体验速率验证。