Question

For a nation to prosper, it must with its neighbors.

Answer 1

For a nation to prosper, it must Trade with its neighbors.

Which mean that they have to put an effort in producing goods/services that could be sell/exported to their neighboring nations. They will economically prosper if their exports scale outweigh their imports.

hope this helps

Answer 2

It must be trade with its neighbours. This means that they have to put an effort in producing goods and services.

This is compelled in their neighbouring nations and economically prosper in exporting scale with outweigh their imports.

It must put efforts in producing goods or services that take place in exports scale for business.