zhēn tàn / fā xiàn / yǒu rén / yī zhí / zài / dīng shāo / tā / yú shì / jué dìng / gǎi biàn / lù xiàn

侦探发现有人一直在盯梢他，于是决定改变路线。

The detective noticed someone had been tailing him, so he decided to change his route.