開口呼 kāikǒuhū open-mouth sound Origin Definitions Defs Strokes Stroke Words Sentences Sents 开口 開口 kāikǒu verb + noun to open one's mouth to open one's mouth; to start to talk; to speak out or make a request呼 hū phonological medial (of Chinese phonology) one of the four classes of syllable onsets or medials (四呼 sìhū)