1.The panda eats bamboo 〈to live〉.""（修饰动词,表目的,状语）2.The question is 〈too hard 〈to answer〉〉.""（修饰形容词、副词,与too搭配,组成too...to...结构,表示程度,状语）以上两类皆属于to不定式的副...