一口咬定 yìkǒuyǎodìng to assert flatly; to insist; to allege Origin Definitions Defs Strokes Stroke Words Sentences Sents 一口 yīkǒu readily readily or flatly; used to describe a firm or unwavering tone when making a statement, denial, or promise咬定 yǎodìng to insist to assert emphatically; to stick to one's word or story and refuse to change it