Bulgaria

Bordered to the east by the Black Sea, to the west by Serbia original: 沙威 (Shāwēi), to the south by Rumelia original: 羅彌里阿 (Luómílǐā), and to the north by the Namia River likely referring to a branch of the Danube or the Siret River of Moldavia.
It governs nine major districts original: 部落 (bùluò); literally "tribes," but used here to denote administrative provinces and twenty-nine minor districts.

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Serbia

Bordered to the east by Bulgaria original: 麻爾牙里 (Máěryálǐ), to the west by Bosnia original: 摩士尼 (Móshìní), to the south by Rumelia, and to the north by Austria original: 奧地里加 (Àodìlǐjiā).
It governs two major districts and twenty-four minor districts.

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Bosnia

Bordered to the east by Serbia original: 沙威阿 (Shāwēiā), to the west by Croatia original: 格羅底 (Géluódǐ), to the south by Herzegovina original: 哈西俄威那 (Hāxīéwēinà) and Albania original: 阿爾麻尼 (Āěrmǎní), and to the north by Austria.
It governs one major district and twelve minor districts.

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Croatia

Bordered to the east by Bosnia, to the west by Italy original: 意大里亞 (Yìdàlǐyà), to the south by Herzegovina, and to the north by Austria.
It governs two major districts and five minor districts.

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Herzegovina

Bordered to the east by Albania, to the west by Italy, to the south by the sea and Italy, and to the north by Bosnia and Croatia.
Governs major districts? The text ends mid-sentence here.