开怀 kāihuái to one's heart's content Origin Definitions Defs Strokes Stroke Words Sentences Sents 2 sentences 哦，他让我开怀大笑。 ò, tā ràng wǒ kāihuáidàxiào. Oh, he makes me laugh. Source: OpenSubtitles最近让你开怀大笑的是什么？ zuìjìn ràng nǐ kāihuáidàxiào de shì shénme? What made you laugh out loud recently? Source: CCMatrix