如果的事歌词含义

After being bitten by a snake a young ladies life begins to take a sharp turn for the worst as a deadly virus plagues her body.。When Kyle Matthews, an elite Sniper from the World Defense Force, is trapped in enemy territory - his skills are put to the test as he attempts to survive against a whole armada of Cerulean soldiers, Hell bent on wiping all humans from existence. But when a beautiful Cerulean woman is shot and left for dead by her own kind, Kyle must chose between his own life and the life of o...。