dyed-in-the-wool 彻底，绝对（成语）

英文释义

(IDIOM) Adjective phrase meaning total; firmly established for a long period of time; deeply-rooted.

例句

My grandfather is a dyed-in-the-wool romantic who still brings my grandmother flowers and candy.

我祖父绝对是位浪漫的人，到现在还送祖母鲜花和糖果。