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地球核心的磁场正在移动,不加夸张地说,地球内部的方向在发生变化。
The magnetic core of the Earth is moving, literally changing directions inside the Earth.
youdao
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地球核心的磁场正在移动,不加夸张地说,地球内部的方向在发生变化。
The magnetic core of the Earth is moving, literally changing directions inside the Earth.
youdao