Grey matter consists of nerve cell bodies.

灰质是由神经细胞体构成。

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。

It's not for want of 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。

For the first time, brain imaging has linked insomnia to a reduction in vital grey matter.

失眠第一次与大脑灰质层的减少联系了起来。

Eating plenty of fruits and vegetables may protect the grey matter which declines as we age.

吃大量的水果和蔬菜可以保护随着我们的衰老而衰退的脑灰质。