Border Points: Each cluster has a limited number of defined "border points" – these are the gateways in and out of the cluster.
대구 찾은 한동훈 “죽이 되든 밥이 되든 나설것” 재보선 출마 시사，这一点在夫子中也有详细论述
BBC/ Alex Osborne，更多细节参见heLLoword翻译官方下载
It was one of the greatest understatements of all time. The crew were in big trouble - a dramatic explosion had disabled their craft.