pinpoint

1. V-T If you pinpoint the cause of something, you discover or explain the cause exactly. 准确指出 (原因)

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。

2. V-T If you pinpoint something or its position, you discover or show exactly where it is. 给…准确定位

I could pinpoint his precise location on a map. 我能在地图上指出他的确切位置。