HSK 7–9 · Practice
一举两得
to achieve two things at once; to kill two birds with one stone
骑车上班既能运动又能省钱，一举两得。
Qí chē shàngbān jì néng yùndòng yòu néng shěng qián， yìjǔliǎngdé。
Cycling to work lets you exercise and save money at once—two benefits in one.