代价没有被消除，它只是被隐藏了，被推迟了，被稀释了。
@jeffjohnroberts
，这一点在搜狗输入法下载中也有详细论述
大年初一的相亲大会来了很多人，把现场围得水泄不通。南方周末记者陈佳慧摄
Looking back, I think I agree, but we have these weird corner cases, right?
MMFF94 optimization — Each conformer is minimized with the Merck Molecular Force Field (1.30 kcal/mol mean error vs. coupled-cluster)