通常，一百个样本要花费实验技术员超过两天的时间来检测，但是一只老鼠只需要花费不到二十分钟。

Traditionally, a hundred samples would take lab technicians more than two days to examine, but for a rat it takes less than 20 minutes.

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他走了出去，但不到二十分钟又回来了。

He went away, but came back within twenty minutes.

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结果…请看我的成就！在短短的不到二十分钟内…

The result… please see my achievement! Within a short period of less than 20 minutes…

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