这些解释分别指的是哪一个词?1._______ willing to di things which are diffi

这些解释分别指的是哪一个词?
1._______ willing to di things which are difficult,dangerous or painful;not afraid
2._______ to say,write or do something as a reaction to a question
3._______ something that you feel you have to do because it is your responsibility
4._______ to keep somebody or something safe from death,harm,etc
5._______ dislike something very much
6._______ the mother of your mother or father