1. If not be handled properly, it will perplex even injure the good-neighbourliness and friendly relation between two parties by the root over a long period of time.
若处理不当，将会长期困扰甚至从根本上损害双方来之不易的睦邻友好关系。
2. More than this, it has shown active good-neighbourliness.
不仅如此，它已经显示了积极的睦邻政策。