玩耍可以让一只小动物探索环境并在相对安全的环境中练习技能，因为周围的成年动物通常不期望幼崽应对威胁或捕食者。
Play allows a young animal to explore its environment and practice skill in comparative safety since the surrounding adults generally do not expect the young to deal with threats or predators.
对于许多人来说，露营是一种对陌生地方的探索并重建如家般安全舒适的方式。
For many, camping is a way of exploring an unfamiliar place while re-creating the safe comforts of home.
既然与大脑多巴胺反馈回路相关联，笑鼓励宝贝们去探索世界使自己感觉高兴和安全。
Since laughter is associated with activity in the brain's dopamine reward circuitry, it encourages babies to explore the world by making them feel happy and safe.
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