单词	鼻音的母音
释义	鼻音的母音 bíyīn de mǔyīn〔lg.〕nasal vowel
随便看	Frequency of acid rain frequency of amendment Frequencyof Appearance frequency of appearance frequency of applied force frequency of a step frequency of auto frequency of back-up Frequency of base isolation Frequency of boulder occurrence frequency of bowel movement frequency of bucket emptying frequency of bud-variation frequency of calibration frequency of callus differentiation frequency of cardiac impulse discharge frequency of characters frequency of chromosomal aberrations Frequency of Chromosome Aberration frequency of citation Frequency of coitus frequency of collision frequency of concurrent events frequency of contact Frequency of Contact