Mr Urban looks increasingly like someone fighting a rearguard action to keep their job.厄本先生越来越像为了保住工作作最后一搏的那些人。The town has been fighting a rearguard action to prevent the multiplex from being built.镇上的人们一直在努力阻止多厅影院的修建。The army fought a courageous rearguard action.部队打了一场英勇的后卫战。