n. 膜擦声；摩擦音（fricative 的复数）
1.This paper compares approximants with continuants, semivowels, fricatives, liquids, and vowels, and identifies the initial ri in Mandarin as an approximant rather than a voiced fricative.
本文比较了近音与通音、半元音、擦音、流音、元音之间的异同，认定普通话日母是近音而非浊擦音。
2.This paper compares approximants with continuants, semivowels, fricatives, liquids, and vowels, and identifies the initial ri in Mandarin as an approximant rather than a voiced fricative.
本文比较了近音与通音、半元音、擦音、流音、元音之间的异同，认定普通话日母是近音而非浊擦音。
3.Early Old Thai also apparently had velar fricatives as distinct phonemes.
早期的古泰国人显然也把软腭摩擦音作为独特的音素。