-settleamatterbyleavingitunsettled;smotherup;byleavingitunsettled;concludewithoutaconclusion;endupin[with]nothingdefinite;concludewithoutconcreteresult[decision];leaveitunsettled;let(amatter)takeitsowncourse:
Thisisaveryimportantproblem,buthejustsleepsonit.这个问题很重要，可他却不了了之。