This means Brazil has a large trade surplus, and it also means it exports more than it imports.
Exports means to give or send to another country, while imports means to take or receive from another country.
It also says it has a large trade surplus which like I said before trading means to give away, but you can also receive things back in turn, but I am still guessing it means it exports more than it imports.
Hope this helps, have a good day. c;