We can't figure out who found it first, but three or four people sort of found it at once, or word spread really quickly.

我们不能找出谁第一个发现，但是，一旦三到四个人发现了这种情况，信息则迅速蔓延。

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Judging from the only images that show ads, most users only look at them after they have scanned through at least the first three or four search results.

Google研究人员在报告中没有提到广告。从仅有的广告图片来看，大部分用户只有在浏览三四个搜索结果之后才会查看广告。

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The goal is to have three or four piles at first - for instance, manual skills, decision-making and judgment skills, and interpersonal skills.

目标是先分成3类或4类，例如动手能力决策和判断能力以及人际交往能力。

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