/rɪˈlæps ||; rɪˈlæps/verb [I] to become worse again after an improvement （改善后）再恶化；故态复萌: to relapse into bad habits 再染恶习 relapse /ˈri:læps ||; ˈrilæps/ noun [C]: The patient had a relapse and then died. 病人旧病复发后不久就去世了。