It was almost impossible to pinpoint the cause of death.

几乎不可能确定死因。

《柯林斯英汉双解大词典》

Now, we've been able to finally pinpoint the cause.

现在，我们已经可以最终查明原因了。

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It's difficult to pinpoint the cause of the accident.

很难清楚地找到事故发生的原因。

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He was looking for a way to pinpoint the cause of recurrent fainting spells, which are sometimes induced by heart abnormalities.

FORBES: The Doctor Is In

Based on specific signs and symptoms, additional studies can pinpoint the cause.

CNN: Male hypogonadism

Investigators trying to pinpoint the cause of the outbreak have been conducting tests in and around animal pens in an attempt to identify the source of the bug.

BBC: Another child treated for E.coli