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   English
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diphthong [ˈdɪfθɒŋ] n
gen. 复合,二合元音字母
AI. 复合元音
otorhinol. 双元音; 复合元音
telecom. 双母音
 English thesaurus
diphthong [ˈdɪfθɒŋ] n
lit. In phonetics, it refers to a sound made up of two vowel sounds.