Sortavala
[地名] [俄罗斯] 索尔塔瓦拉
🗣️ 情景例句
Where's Mom?
妈妈呢？
Is it too late?
来得及吗？
namely 6 million million miles.) Radio waves also travel at the speed of light,
即6万亿英里）。无线电波也是以光速传播的。