Read Edit View history 信誓旦旦 xìnshìdàndàn vow Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 信誓旦旦 · xìnshìdàndàn · vow 2026/03/04 信誓旦旦 xìnshìdàndàn vow to make a solemn vow 他信誓旦旦地保证会准时完成任务。 idiom created sense Mar 4, 2026, 02:25 AM