托病: on pretext of illness; plead illness; under the pretext of being ill
引退: retire from office; resign 短语和例子集体引退 collective resignation; 因无能而引退 get disability retirement; 他的引退给董事会留下了一个空缺。 his resignation left a vacancy on the board of directors
托病辞职: ask for resignation on the pretext of illness; make illness an excuse to resign one's post