on in years
年龄较大，年迈
书面/口语·委婉描述年迈
英文释义
old; advanced in age
例句
My grandfather is well on in years, but he still enjoys gardening every day.
典故来源
直接由“on”和“in years”组合，意为“在岁月中前进”，指年龄增长。