Spending time online is normal behavior for teenagers. But too much Internet use by teens — or too little, for that matter — might be related to depression, a new study finds.
虽然上网对于青少年来说是很正常的行为，但是一项新调查发现，上网时间过长或者过短可能会导致抑郁。
The study was released online in advance of publication in an upcoming issue of the journal Evolution and Human Behavior.
研究是在线发布的，发布在《进化和人类行为》杂志最新一期之前。
Spending time online is normal behavior for teenagers. But too much Internet use by teens -- or too little, for that matter -- might be related to depression, a new study finds.
虽然上网对于青少年来说是很正常的行为，但是一项新调查发现，上网时间过长或者过短可能会导致抑郁。
This paper tries to study online-game customer behavior in view of the players.
本文尝试从玩家角度研究网络游戏消费者行为。
Therefore, the study on theory and practical research on monitoring learning behavior in the online learning promises significant importance.
因此，对网络学习中学习行为监控的理论和实践研究具有广阔的空间。
Therefore, the study on theory and practical research on monitoring learning behavior in the online learning promises significant importance.
因此，对网络学习中学习行为监控的理论和实践研究具有广阔的空间。
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