1、Before the Yugoslav wars of the 1990s, Yugoslavia was a diverse country with multiple ethnic groups living in harmony.
在1990年代的南斯拉夫战争之前，南斯拉夫是一个多样化的国家，多个民族和谐共处。
2、Due to political tensions, Yugoslavia eventually dissolved into several independent nations in the 1990s.
由于政治紧张局势，南斯拉夫在1990年代最终解体为若干独立国家。