magic bullet

• One is that biologists have little training in developing piecemeal manipulations of complex systems and thus focus on seeking " holistic " ones ( magic bullets ) , which are probably absent in the case of aging
  其一是，生物学家在把复杂系统分解操作方面缺乏训练，这样，就把精力集中在寻找"整体性" （魔弹） ，它可能在老化的场合中并不存在。