fit as a fiddle -用法

fit as a fiddle

in very good health十分健康；精力旺盛

The old man is more than 80 years old but fit as a fiddle．这位老人已经80多岁了，但仍身体健康，精神很好。

Professor Li rested at home for a few weeks after his operation；now he is fit as a fiddle．李教授手术后在家休息了几周，现在他精神很好。