夜晚，校园相对安静，温度在二十一二度左右，淡淡的灯光下，小道路面上摇曳着树木的影子……那真是读书学习的好时光，只可惜自己当年没有充分利用。
In the slight light, the path would lead your way under the shades of trees….What a good time for learning! It’s a pity that I have squandered on it.
另一方面，她又被影子侦探利用，终使心上人的灵魂落入了深渊。
On the other hand, she has been cheated by a shadow detective, and finally, her lover's soul falls into a deep hole.
前一种方法是在去除目标影子的前提下，提取运动目标整体形状的不变矩特征，然后利用BP人工神经网络进行目标的识别。
The former first eliminate the shadow of moving objects, and then extract shape invariant moment characteristics of object's whole region and identify them by a BP neural network.
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