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.
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，这一点在搜狗输入法下载中也有详细论述
与此同时，全国泊位数量约1.5万个，基础设施短板明显，“买得起、停不起、用不起”仍是现实约束。，详情可参考WPS官方版本下载
Фото: U.S. Navy / Reuters