translation.en: And lo and behold, when he went through the data, he found that it didn't look like the expensive, complicated solution was any better than the cheap one, at least for the children who were two and older -- the cheap one still didn't work on the kids who were younger.
translation.zh: 结果一看之下，当他翻遍了所有的数据 他发现这个又复杂又昂贵的方法 并不比那个便宜的方法有效。 至少对于两岁和两岁以上的孩子 — 当然这个便宜的方法两岁以下的还是不能用。（所以也没法比。）