diphthongs的翻译，读音
英/ˈdɪfˌθɔ:ŋz/
释义：
n. 双元音( diphthong的复数形式 )
n. a vowel sound that starts near the articulatory position for one vowel and moves toward the position for another
n. a vowel sound that starts near the articulatory position for one vowel and moves toward the position for another