Translation of "Belarusian" in Chinese

Let's sing the Belarusian song!

咱們唱一唱白俄羅斯的歌吧！

The text needs to be translated into Belarusian.

文章應該被翻成白俄羅斯文。

When an Uyghur met a Belarusian, what language did the two speak to each other?

当维吾尔人遇到白俄罗斯人时，他们用什么语言沟通？

Due to total Russification in Belarus, the Belarusian language is on the brink of extinction.

由于完全的俄罗斯化在白俄罗斯里，白俄罗斯语在绝灭的边缘。