Lingo Rag@LingoRagChinaFollow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork ExperienceLingoRag has not updated employment details yet.EducationLingoRag has not updated education details yet.