core

core

名词 core:

the center of an object

a small group of indispensable persons or things

同义词：nucleus, core group

the central part of the Earth

the choicest or most essential or most vital part of some idea or experience

同义词：kernel, substance, center, essence, gist, heart, heart and soul, inwardness, marrow, meat, nub, pith, sum, nitty-gritty

a cylindrical sample of soil or rock obtained with a hollow drill

an organization founded by James Leonard Farmer in 1942 to work for racial equality

同义词：Congress of Racial Equality

the central meaning or theme of a speech or literary work

同义词：effect, essence, burden, gist

the chamber of a nuclear reactor containing the fissile material where the reaction takes place

a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil

动词 core:

remove the core or center from