（单词翻译:单击）
Mamma take this badge from me
I can''t use it anymore
It''s getting dark， too dark to see
I feel like I''m knockin'' on heaven''s door
Knock， knock， knockin'' on heaven''s door
Knock， knock， knockin'' on heaven''s door
Knock， knock， knockin'' on heaven''s door
Knock， knock， knockin'' on heaven''s door
Mama， put my guns on the ground
I can''t shoot them anymore
That long black cloud is comin'' down
I feel like I''m knockin'' on heaven''s door
Knock， knock， knockin'' on heaven''s door
Knock， knock， knockin'' on heaven''s door
Knock， knock， knockin'' on heaven''s door
Knock， knock， knockin'' on heaven''s door
