noun🔗Share无理数，根式解。 An irrational number, especially one expressed using the √ symbol."The square root of 2 is a surd. "根号2是一个无理数，也就是一个根式解。mathnumberChat with AIVocabulary GamePractice Reading
noun🔗Share清辅音, 无声辅音 A voiceless consonant."During phonics practice, the teacher explained that the letter "p" in "pen" represents a surd because it's a voiceless consonant sound. "在拼读练习时，老师解释说，“pen”这个词里的字母“p”代表一个清辅音，因为它发的是无声辅音。phoneticslanguagelinguisticssoundwordChat with AIVocabulary GamePractice Reading
adjective🔗Share聋的，失聪的 Lacking the sense of hearing; deaf."The elderly woman, now surd, relied on reading lips to understand conversations. "那位年迈的妇人现在失聪了，只能靠读唇语来理解对话。medicinebodyphysiologydiseaseconditionsensationhumanpersonorganbiologyChat with AIVocabulary GamePractice Reading
adjective🔗Share未听到的，没听见的。 Unheard"The baby's cries were surd, lost in the noise of the busy street. "婴儿的哭声没被人听见，淹没在繁忙街道的喧嚣声中。soundlanguagelinguisticsChat with AIVocabulary GamePractice Reading
adjective🔗Share无理的 Involving surds, or irrational numbers; not capable of being expressed in rational numbers."a surd expression or quantity; a surd number"一个无理表达式或量；一个无理数。mathnumberChat with AIVocabulary GamePractice Reading
adjective🔗Share清音的，无声的 Unvoiced; voiceless"The teacher's lecture was filled with surd pronouncements, making it difficult to understand. "老师的讲座里充满了清音发音，很难听懂。phoneticslanguagelinguisticssoundChat with AIVocabulary GamePractice Reading
