concentric

adj ~ (with sth) (of circles) having the same centre （指数个圆）有同一中心的: concentric rings 同心环. Cf 参看 eccentric 2.

comradeship, con, con man, concatenate, concatenation, concave, concavity, conceal, concealment, concede, conceit, conceited, conceitedly, conceivable, conceivably, conceive, concentrate, concentrate on, concentrated, concentration, concept, conception, conceptive, conceptual, concern, concerned, concernedly, concerning, concert, concert grand, concert-goer, concert-master, concerted, concertina, concerto, concess, concession, concessionaire, concessionary, concessive,