Can you allow class to be inherited, but prevent the method from being over-ridden?
能够实现允许某个类被继承，但不允许其中的某个方法被覆写么？
2
When the class itself is inherited from an abstract class, but not all base abstract methods have been over-ridden.
抽象类中可以有方法的实现，也可以指定方法的访问修饰符。
3
The issue really is how many sides are able to engage them those wide areas. So far the inherent weakness in the system has been over-ridden by Chelsea's dominance in the centre.