some things like learning are better done in the old hard wa

etter是副词,修饰动词的.你记住,修饰动词的都是副词,不会是形容词,形容词修饰名词.
这句话首先是被动语态,things是主语,are done是谓语,意思是“有些事被做”,怎么被做呢?是更好地（better）被做,怎么更好地被做呢?后面in the old hard way 是介词短语,也修饰谓语,“以.方式” = “in .way”.