追查

zhuī chá dòng jī

追查动机

find out the motive

zhuī chá yáo yán lái yuán

追查谣言来源

trace a rumour to its source

zhuī chá chē huò de yuán yīn

追查车祸的原因

investigate the cause of a car accident

zhuī chá shì wù de qǐ yuán

追查事物的起源

trace a matter to its origin

tā tōng guò bù zhèng dāng de shǒu duàn zhuī chá dào le lìng wài nà ge nǚ ren

她通过不正当的手段追查到了另外那个女人。

By devious means she tracked down the other woman.

rú guǒ yī gè rén bèi shā diào chá rén yuán jiù yào zhuī chá xiōng shǒu

如果一个人被杀，调查人员就要追查凶手。

If a person is killed, investigators have to track down the killer.