Many of non-native english speakers make the mistake of learning the wrong pronounciations. But, this service may help you to understand how a word should be pronounced. I usually used answers.com for learning the pronouciation. I think this one is also good!
Type a word or phrase and hear it spoken back to you. Howjsay is an English pronunciation dictionary that uses recorded sound rather than text-to-speech synthesis. Enter a word or phrase, wait for it to appear on the page in pink, then hover your mouse over the word(s) to hear the pronunciation. Supports both UK and American spellings. URL: Howjsay.