[] a mark that tells you how good sth is in sb's opinion星级◆This printer received a top rating of five stars from ‘Your PC’ magazine.这款打印机得到了《你的个人电脑》杂志五星级的最高评级。a thing or person that is the best of a group（团体中）最优秀者◆The company has become the star of its sector.这家公司是其行业中的佼佼者。in theBoston Matrix , a product that has a large market share in a market that is growing very quickly明星产品（波士顿矩阵中的在成长很快的市场中拥有很大市场份额的产品）➡ picture at Boston Matrix