求翻译：首先，不少青少年都忙于学校活动和在线娱乐，而不是学术学习。这样的做法符合快乐至上的原则，却产生了可怕的后果，其中之一就是日益减少的学习兴趣或热情。是什么意思？

First of all, many young people are busy with school activities and online entertainment, rather than academic learning. This approach is consistent with the principle of the supremacy of happiness, it has had terrible consequences, one of which is the dwindling interest in learning or enthusiasm.

First of all, a lot of young people are busy with school activities and Online Entertainment, rather than academic learning. This kind of approach is consistent with the principle of the supremacy and happy, have had terrible consequences, one of which is the declining interest in learning or enthus

First, many young people all are busy with the school activity and the online entertainment, but is not the academic study.Such procedure conforms to the joyful supreme principle, has had the fearful consequence actually, one of them is the study interest which reduces day by day or warm.

First of all, a lot of young people are busy with school events and online entertainment, rather than academic learning. Such a happy approach is consistent with the principle of the supremacy of, but with terrible consequences, one of which is a gradual decrease in interest or enthusiasm.

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