优点： 输出均值更接近 0，梯度更稳定。
On land, habitats for hedgehogs, field voles and other small mammals have been washed out, resulting in them being pushed out of their homes and drowning.
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商超品类已连续 8 个季度实现双位数增长。服务收入全年同比增长 23.6%，占总收入比例达 21.8%，亦创年度新高。