Why would top imports also be the top exports for a country?

Some countries may have trading restrictions with a country and may import from a third country where that item is from. For example, let's say that I live in France and my government hates Spain, so France and Spain cannot trade. But I have a bunch of customers in France who want Spanish chocolate. Here comes good ol' Italy. Italy likes France and Spain and has no trade restrictions with either country, so sn enterprising businessman in Italy imports chocolate from Spain and exports it to France. Italy makes a profit, Spain sells their chocolate, and France gets their chocolate without making concessions to their arch-rival, Spain. This is just a hypothetical. France and Spain don't really hate each other in real life. And French people get their sweeties from the Swiss. Another reason is that the raw materials imported from one country might be refined in some way for export to other countries. Let's pick on some different nations this time: The United States is a third world country that grows a bumper crop of cotton every year. Nobody has any use for it in the US because there's so much of it that they can't use it all. Australia is a thriving nation of bankers and international lawyers, but their climate is not conducive to growing cotton for clothes. Enter the United Kingdom, an industrial power in the textile field. Now, the UK has a bunch of fashion designers, but nobody in the UK wears very much cotton because the weather demands wool. The UK imports cotton from the US, makes clothing out of it and sends it to Australia at a huge profit. Again, it's a hypothetical situation used for example.