一回事 yīhuíshì HSK7 one and the same thing Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: a situation All meanings 11 yīhuíshì 11 one and the same thing 5a separate matter 5a situation 1 1 sentence for 一回事 (yīhuíshì — a situation) 你明白昨天是怎么一回事吗？ nǐ míngbai zuótiān shì zěnme yīhuíshì ma? Do you understand what happened yesterday? Source: OpenSubtitles