primary(a)
n. a preliminary election where delegates or nominees are chosen 同义词：primary election
one of the main flight feathers projecting along the outer edge of a bird's wing 同义词：primary featherprimary quill
coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit"current through the primary coil induces current in the secondary coil"
同义词：primary coilprimary winding
adj. of first rank or importance or value; direct and immediate rather than secondhand"primary goals"; " a primary effect"; " primary sources"; " a primary interest"
not derived from or reducible to something else; basic"a primary instinct"
most important element"policemen were primary targets"
同义词：chief(a)main(a)principal(a)
of or being the essential or basic part 同义词：elementaryelemental
of primary importance 同义词：basal