> ...there are several groups of sounds which the non-francophones do not distinguish, while the francophones cannot understand how they may be confused with on

> ...there are several groups of sounds which the non-francophones do not distinguish, while the francophones cannot understand how they may be confused with one another. In linguistics, these are called allophones: http://en.wikipedia.org/wiki/Allophone http://en.wikipedia.org/wiki/Allophone