正式、书面语境

- The differences and usages between "Nín" and "nǐ" are not the same throughout the country.

- The distinctions and uses of "Nín" and "nǐ" vary across the whole nation.

相对口语化一些的语境

- The differences and how to use "Nín" and "nǐ" aren't the same all over the country.

- The differences between "Nín" and "nǐ", as well as their usage, are different in every part of the country.