How to pronounce P and F in English

source: EnglishLessons4U    2011年11月28日
http://www.engvid.com Many English students have trouble contrasting the 'P' and 'F' sounds. Watch this free pronunciation lesson the secret to making these sounds correctly when you speak. I will teach you exactly what to do with your mouth, tongue, and teeth! Especially useful for Korean and Japanese students who do not have these sounds in their languages. http://www.engvid.com/p-f-pronunciation/