【ご予約品】 vowel F1 – F2 of Comparison spaces vowels English 11 of 語学・辞書・学習参考書
triangle_keywords2.jpg,Hypothesized vowel space of Hungarian vowels. The horizontal,Comparison of F2 – F1 vowel spaces of 11 English vowels,The Vowel Trapezoid. If you are like me and did not think