@Pham Hong Van: I find this is an excellent site for the pronunciation with a choice of several French voices and other languages available too - it's not a dictionary though: http://www.acapela-group.com/text-to-speech-interactive-demo.html @Jura: The French.about.com link redirects to http://www.wordreference.com/ which is an excellent dictionary but it doesn't have any audio. There is also an audio dictionary on French.about.com which has got about 2,000 translations and the audio isn't done by a native speaker.

Hi Pham this one is free. Free French Dictionary - Online English French Dictionary Free online French dictionary, with 120000 translations. ... French Dictionaries · Dictionaries · French Audio Dictionary - French Terms Starting With F ... french.about.com/library/bl-collins-ef.htm

You can also learn French here at Italki. Go to; http://www.italki.com/knowledge/Learn-french-english.htm