It was almost impossible to pinpoint the cause of death.

几乎不可能确定死因。

if you can pinpoint exactly what the anger is about.

如果你能确切说明生气的原因。

The commission pinpoints inadequate housing as a basic problem threatening village life.

该委员会准确指出住房短缺是威胁村民生活的一个根本问题。

I could pinpoint his precise location on a map.

我能在地图上指出他的确切位置。