Roll

滚音

A term used in the phonetic classification of consonant sounds on the basis of their manner of articulation. Also known as a rolled consonant, or a trill, it refers to any sound made by the rapid tapping of one organ of articulation against another. Several accents of English use an alveolar rolled [r], as in Welsh and Scots. 

语音学按发音方式给辅音分类的术语，也称作“滚”辅音或闪音；指一个发音器官急速轻拍另一发音器官发出的音。好几种英语口音有一个齿龈滚音[r]，如见于威尔士语和苏格兰语。