Tuìxiū yǐhòu, tā réngjiù jiānchí měitiān duànliàn shēntǐ.
After retiring, he still keeps exercising every day.
Tips
usage
仍旧, 仍然 (réngrán), and 依旧 (yījiù) all mean 'still/as before.' 仍旧 is slightly more literary. 仍然 is most common in writing. 还 (hái) is most common in speech.