sindexsubtonic./suhb-ton-ik/US // sʌbˈtɒn ɪk //UK // (sʌbˈtɒnɪk) //亚音速,亚音符,亚音调,亚音速的Definitionsn.noun · 名词1.›the seventh tone of a scale, being the next below the upper tonic. Level 5More words in s →