• 基础释义
  • 例句
  • 柯林斯词典释义
例句
柯林斯高阶英汉双解学习词典释义
  • N-COUNT
    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.