词汇	半不毛之地
释义	半不毛之地 pindan
随便看	quality pledge quality point quality point average quality policy quality positioning quality potential quality pre-control quality predict quality predicting quality prediction quality prediction model quality prediction of tube hollow quality premium quality present situation quality present status quality preservation quality press quality prevention quality prevention cost quality price differences quality price differential quality price differentials quality-price game model quality principle quality principles in higher education