...an unsolved mathematical equation which has caused his grey matter to work overtime.

他长时间思考的一道悬而未决的数学方程式

柯林斯高阶英语词典

Even though Mr. B possesses unique grey matter, he does not flaunt himself.

即使B先生才智不凡, 他也不夸耀自己.

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It's not for grey matter he does so badly at school. He's just lazy.

他学习这样差,不是因为脑子不聪明, 而是太懒.

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A modest person grey matter will earn more respect from others.

有高智慧而谦虚的人,更能赢得别人的尊敬.

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Grey matter appears grey, matter white.

灰质呈灰色, 白质呈白色.

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In any event It'seems size does matter, at least when it comes to grey matter.

规模的重要性看来体现在万事之中, 至少大脑问题如是.

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If you use your grey matter, you can solve this math problem.

假如你用你的头脑, 你就能解决这个数学题目.

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This sort of global contest for grey matter certainly makes for a bracing environment.

这种对智力人才的全球性竞争当然会产生一个令人振奋的环境.

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