Jǐngfāng / huáiyí / yǒurén / ānzhuāng / qiètīngqì / zhèngzài / diàochá / shèbèi / de / láiyuán

警方怀疑有人安装窃听器，正在调查设备的来源。

The police suspect that someone installed a bug and are investigating where the device came from.