侦查

We have two of our best agents on the case.

我们有两名最优秀的密探在侦查此案。

I returned from a lengthy scout round the area.

我用了少时间侦查那个地方来。

If you don't hear anything, you don't have to peek lower B and can continue on to the bombsite.

如果你没有听到什么动静，你必侦查B通道低地处，可以继续朝挺进。