警方仍在试图找到嫌疑犯的位置。

Police are still trying to ___locate the suspect.

他试图确定墙的位置，然后冷静地向前迈了一步。

He tried to ___locate the wall and took a calm step forward.

我们需要定位干扰源。

We need to ___locate the source of the interference.