音标：[ɡrei ˈsʌbstəns] ；

[医]灰质

词型变化：名词复数形式 : grey substances

【近义词】

grey matter灰质
substantia grisea灰质
gray substance灰质
gray matter灰质,灰白质...

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Adeang

air cylinder pusher

ambiguity for statement

atomic absorption spectro-photometric analysis

atyids

back-pressure curve

bank credit plan