经过广泛的搜索，我们终于找到了丢失的钥匙。

After an extensive ___search, we finally located the lost keys.

侦探们对犯罪现场进行了详细的搜查。

The detectives conducted a detailed ___search of the crime scene.

她怀疑有泄露，所以在整栋大楼里发起了一次搜索。

She suspected a leak, so she initiated a ___search throughout the building.