Accented Syllable and Schwa Sound的用法和样例：
- A metrical foot consisting of one accented syllable followed by two unaccented or of one long syllable followed by two short, as in flattery.
- The only way to ever really master English is to practice each word, each syllable and each individual sound until you can pronounce it exactly right.
- The first one is about syllables and stress.
- The 160-page English slang lexicon records such terms or phrases as 'You so obama,' which means 'You are cool,' 'presh' for cute or precious and 'schwa' for wow.