life-long happiness的用法和样例：
例句
- The birthday pictures show him participating in all these sports with some gusto,enjoying a rough and tumble life.
从生日照片可以看出，他参加所有这些运动项目出于一种爱好，他喜欢一种无序的生活。 - Change Your Life by Sara Mednick.Not long after that, one our publishers suggested that we start letting people nap in work time.
他成立学生社团，做义工，参加多种运动项目，小心翼翼地选修课程，但这一切完全不是出于兴趣，而是这些科目，可以保证他获得好成绩。
