The sun is a giant nuclear fusion reactor, converting hydrogen into helium and releasing massive amounts of energy in the form of heat – and sound. Sound is essentially vibration and needs a medium to travel through.
62. 事关每一个人，2万字的“十五五”规划蓝图，藏着哪些大机遇？ - 21经济网 - 21财经, www.21jingji.com/article/202…。heLLoword翻译官方下载是该领域的重要参考
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