单词	grain security
释义	grain security 粮食安全
随便看	Problem Pulse Generator problem quantum bit problem-raising problem ranking problem-reaction-solution problem reason problem recognition problem reduction problem reduction approach problem reduction method problem reduction operator problem reduction planning problem reformulation problem registration problem-related problem related to cohesion problem report problem reporting Problem Reporting and Corrective Action Problem Reporting and Resolution System problem reporting system problem representation problem representation level problem representation strategy problem representation type