diphthong
n. 双元音；复合元音
形容词：diphthongal
英英释义
Noun
- a vowel sound that starts near the articulatory position for one vowel and moves toward the position for another
例句
用作名词(n.)
- All vowel and diphthong sounds in English are voiced.所有英语元音和双元音都是发声的。