我不太了解这个国家的东北部地区。

I don't really know the ___northeast part of the country.

你应该参观东北地区，那里以白色沙滩闻名。

You should visit the ___northeast region, which is famous for its white sandy beaches.

他们的房子朝东北，所以早上有阳光。

Their house faces ___northeast, so it gets morning sun.