For example, a company may be able to estimate accurately the aggregate number of shoes it will sell, but it may be uncertain about which specific types of shoes will sell more than other types.

例如，一个公司也许能够准确地估计它将销售的鞋子总数，但它可能不确定哪一种特定类型的鞋子将比其他类型的鞋子卖得更多。

youdao

While this book is very well-organized as a reference, a good number of the descriptions left me uncertain about occasional subtleties of the language.

虽然作为参考这本书组织得很好，但有许多描述仍让我无法确定语言中那些偶尔的微妙之处。

youdao

While the number of casualties was uncertain, hospitals in Middletown, Hartford and New Haven reported receiving more than two dozen injured people.

目前的伤亡人数还没有最终确定，在中部城，哈特福德，纽海文的医院报告已经接收二十多名受伤人员。

youdao

Yet traveling back to smog-bound Beijing, past industrial factories, high-rise apartment blocks under construction,shopping malls and the ever growing number of cars, the future once more looks uncertain.

VOA: standard.2010.08.03

Tom Rees is set to start at open-side ahead of Michael Lipman, while the number eight position is uncertain.

BBC: Abendanon to miss England Tests

The number of real Web developers remains uncertain.

FORBES: SAPVoice: Hey Web Developers! SAP's Sybase Unwired Platform Wants YOU

In the Senate, the GOP should easily have won a basketful of new seats but a number of missteps by their candidates have made outcomes uncertain.

FORBES: Romney Will Win Decisively