In very few cases can one person be both a product owner (tactical inwardly-focused role) and a product manager (strategic outwardly-focused role).

在极少数情况下，一个人既可以是产品负责人(策略上对内的角色)，又是产品经理(策略上对外的角色)。

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Several works on the computation of spillway flow by finite elements have been reported, but in very few cases did the region computed include the free jet emerging from the bucket.

用有限元法计算溢洪道水流的工作，以往曾有所报导，但很少计算是包括挑射水流的。

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Indeed, in very few known cases, parent birds sometimes abandoned their nests from something touching their young, just because they noticed it by sight, not smell.

事实上，在一些已知的案例中，母鸟有时会因为孩子被碰触而弃巢，仅仅因为它们是通过视觉而不是嗅觉发现的。

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He insisted that undercover policing was an "extremely valuable tool" for the police but recognised that "in very few cases, things can go wrong".

BBC: Call for undercover policing inquiry

However, while the court has set a new test for "miscarriage of justice", we expect that compensation will still only be paid in very few cases.

BBC: Supreme Court allows miscarriage of justice appeals

Sure, the area is populated by legions of well-off politicians, lawyers and lobbyists, but in very few cases has laboring in the political hothouse generated the magnitude of wealth necessary to place highly in Forbes' rankings.

FORBES: Valuations