“急件”怎么读？

我正拿着大使的急件。I was carrying dispatches from the ambassador.我们得派人把急件由罗马送往伦敦.We must ask someone to carry a dispatch from Rome to London.“ 那边给你送来了急件.'A despatch sent after you from over yonder....

“急件”的英语可以翻译为：urgent document or dispatch，dispatch，urgent-mail ...