听力原文： (9)EU foreign ministers have held a meeting in Brussels to urge Serbia to hold on to its European course. The ministers say Serbia could risk isolation if it quits plans to join the EU over the issue of Kosovo. EU foreign policy chief Javier Solana says he hopes the upcoming elections in Serbia will be an opportunity for Serbian voters to show support for the EU course. He adds the situation in Kosovo is better than some have feared, but overall it is still unstable. Solana says EU ministers want the UN Mission in Kosovo to stay in place on the border between Serbia and Kosovo. What is the aim of the meeting held by EU foreign ministers in Brussels?