271.opportunity. c.机会;
272.phase. n状态;
273.violin. n小提琴=fiddle;
274.prodigy. c.神童;
275.region. c.地方;
276. Jew. C.犹太人;
277.passport. n护照;
278.competitive society竞争性社会;
279.biological inheritance生理遗传;
280. generation. N一代;
281.musician. n音乐家;
282.career. n事业;
283.professional field专业领域;
284. natural gift天赋才能, 天资;