能够发现新问题和新的研究方向。
我们在运行过程中会不断的发现新问题，不断的完善它。
New problem on we in the course of operating can constant completion it.
关于先编写测试最有趣的事情之一是，它有助于发现新问题。
One of the most interesting things about writing tests first is that it helps make emergence possible.
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