我也许无法确切知道会有什么缺陷，但是从统计学上来看，我知道一定会有缺陷，需求会成为焦点，而估算仅仅是估算。

I may not know exactly which bug will arise, but I know statistically that bugs happen, that requirements come into focus, and that estimates are just estimates.

youdao

引导风格和实际的焦点使他们易接近广大的观众（用有限的统计知识包括开业医生）。

The introductory style and practical focus make them accessible to a wide audience including medical practitioners with limited statistical knowledge.

youdao