diphthong

noun

1. 二合元音；复元音；双元音；双元音字母组合
   a combination of two vowel sounds or vowel letters, for example the sounds /aɪ/ in pipe /paɪp/ or the letters ou in doubt

1. 复合元音;双元音
   A diphthong is a vowel in which the speaker's tongue changes position while it is being pronounced, so that the vowel sounds like a combination of two other vowels. The vowel sound in 'tail' is a diphthong.

1. Either of two marks used In Greek to Indicate aspiration of an Initial vowel or diphthong ( ') or the absence of such aspiration(?).
   希腊语中两种符号之一，表示首元音或双元音的送气发音的符号（'）或不发这种送气音的符号（？）。
2. Change from a simple vowel to a diphthong.
   把一个简单的元音转变为双元音。
3. Is a diphthong, and therefore is not divided.
   是双元音，故不能分开。
4. The fifth chapter discusses the different historical origin of the diphthong in East Asia.
   第五章重点讨论复合元音的历史形成和演化的基本途径。
5. The contraction of two vowels into a diphthong.
   把两个连续的元音或音节收缩或紧缩成一个双元音。
6. A diphthong is considered one vowel sound.
   双元音被看做是一个元音。
7. Four vowels, [ I], [ a], [], [ u], and one diphthong [ ou], produced by two male and two female tracheoesophageal speakers were analyzed by the LPC autocorrelation method.
   利用LPC自相关算法分析了四位（二男二女）气管食管发音人所发的四个主要元音[i]，[a]，[ε]，[u]。
8. It is difficult to synthesize the sonant in the speech synthesis especially in the synthesizing diphthong in speech synthesis.
   语音合成中以浊音合成为难点，尤其是在做多元音合成时尤为突出。

noun

1. a vowel sound that starts near the articulatory position for one vowel and moves toward the position for another