The room burst into laughter; the man looked puzzled and hurt.
房间内爆发出一阵笑声；那个男人看起来困惑又受伤。
Ancient Greek philosopher Aristotle viewed laughter as "a bodily exercise precious to health.
古希腊哲学家Aristotle认为笑声是一种对健康有益的身体锻炼。
Laughter does 2 short-term changes in the function of the heart and its blood vessels, 3 heart rate and oxygen consumption.
笑会引起心脏及其血管功能的 2 项短期变化，3 心率和氧气消耗。
But because hard laughter is difficult to 4 , a good laugh is unlikely to have 5 benefits the way, say, walking or jogging does.
但因为剧烈大笑难以4，一次良好的大笑不太可能像散步或慢跑那样带来5益处。
6 instead of straining muscles to build them, as exercise does, laughter apparently accomplishes the 7 .
6 与锻炼通过拉伸肌肉来增强肌肉不同，笑声显然达到了 7 的效果。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。