If an activity is more challenging, we might feel a greater sense of satisfaction when we manage to do it successfully.
如果一个活动更有挑战性，我们可能会感到更大的满足感，当我们成功如何才能做到这一点。
If an activity is more challenging, we might feel a greater sense of satisfaction when we manage to do it successfully.
如果一个活动更有挑战性，我们可能会感到更大的满足感，当我们成功如何才能做到这一点。
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