女孩就是夜场的本钱。招不到女孩让Maggie姐也相信这个行业前途渺茫，只会越来越差，场子开得越大，亏本就越多。“很多人以为夜总会生意好做，经济不好了，什么都没有，投钱到夜总会的都失败。客人呢，太老了，很多已经玩不动了，年轻点的，又嫌你那里老气。”
优点： 输出均值更接近 0，梯度更稳定。
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They carried out an array of experiments on board the orbiting lab and conducted spacewalks, with Suni breaking the record for the woman who spent the most hours outside of the space station. And at Christmas, the team dressed in Santa hats and reindeer antlers - sending a festive message for a Christmas that they had originally planned to spend at home.
个体生产力的二次定义与竞争力位移