Well, the only option here that's surrounded by all of these features is the Balkan Peninsula in Europe.

好了，这里唯一满足问题要求的答案是欧洲的巴尔干半岛。

And then the next one is the Balkan peninsula.

然后下一个是巴尔干半岛。

Yugoslavia filled much of Europe's Balkan Peninsula during most of the 20th century.

在 20 世纪的大部分时间里， 南斯拉夫占据了欧洲巴尔干半岛的大部分地区。

In the southeast of Europe, Bulgaria sits at the east end of the Balkan Peninsula.

在欧洲的东南部，保加利亚位于巴尔干半岛的东端。

Speaking of the Balkan Peninsula, let's travel to it, to the country of Bosnia and Herzegovina where one lake is experiencing an example of extreme pollution, pollution so alarming that even environmentalists are surprised.

说到巴尔干半岛，下面我们去那里看看，到波斯尼亚和黑塞哥维那的国家看看，一个湖泊正在遭受严重污染，严重到令环保人士咋舌。