of old
long ago； in the past古时候；过去
Knights of old had to wear armor in battle．古代的骑士作战时都戴盔甲。
Things are very different now from what they used to be of old．现在的情况跟从前大不一样了。
He often recollects days of old．他常常回想起往昔的日子。
In days of old， Mary's grandfather lived in this village．从前，玛丽的祖父就住在这个村子里。