大快人心

Some people say you should hunt down the snake and kill it.Revenge is sweet and all, but the reason is so the doctor will know what kind of antivenin to use.

有人说您必须找到那条袭击你的蛇，并杀了它，复仇固然大快人心，但这么做主要是让医生知道应该用哪种血清。