Too little of either can lead to leg cramps, and even a slight deficiency of magnesium can leave you lying there with a racing mind.

这两者中缺了任一样都会导致腿部抽筋，即使是稍微缺点镁，也能导致你在躺着的时候脑子一团糟，静不下来。

youdao

I made sure I sounded calm but my mind was racing.

我确保自己听起来很平静，但大脑却在急速运转。

《柯林斯英汉双解大词典》

My mind was racing.

我的脑子在转个不停。

youdao

They ensure I get to sleep and do a great job of slowing my racing mind down - but at a price.

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The thought of your operation- and the unknown- has you in panic with your mind racing.

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Just now, "Good Thing" by Paul Revere and the Raiders is racing through my mind.

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