We're still trying to pinpoint the exact cause of the accident.我们还在想办法确定事故的确切原因。

It was almost impossible to pinpoint the cause of death.确定死因几乎不可能。

I could pinpoint his precise location on a map.我能在地图上找到他的准确位置。

'It's just here,' he said, pinpointing the ruins on the map.“就在这儿, ”他指着地图上的废墟说。