Definition: Fatal actions have very bad effects. Level: B2
在商业中，没有数据就做假设可能是致命错误。
Making assumptions without data can be a ___fatal error in business.
对整个项目来说，忽略一个细节被证明是致命的疏忽。
Overlooking a single detail proved to be a ___fatal oversight for the entire project.
CEO忽视市场趋势的致命决定导致了巨大损失。
The CEO's ___fatal decision to ignore market trends led to huge losses.
