-muddlewithone'sduty;behalfheartedabout...;beperfunctoryinone'swork;dojustenoughtogetby;dothingsperfunctorily;doenoughmerelytofulfilthesurfaceofformalrequirementsofofficewithoutregardforquality;dothingsasameredischargeofone'sduties;givealickandapromise;irresponsible;makeadisplayandevaderesponsibility;makeashowofdoingone'sduty;performone'sdutiesasroutinefunctions;withoutcareorinterest;performone'sdutyinaperfunctorymanner;withaperfunctorygesture:
Iamsorrythatheshouldbesohalf-heartedabouttheimportantwork.我很遗憾，他对这项重要工作竟这样敷衍塞责。