查出
chá chū
to find out
to discover
investigate (查) + come out (出) = find out
查 means to inspect or look into something; 出 adds the sense of a result emerging from that search. Together they capture the moment a hidden fact surfaces.
医生查出他得了感冒。
yī shēng chá chū tā dé le gǎn mào。
The doctor found out that he had a cold.
警察终于查出了事情的真相。
jǐng chá zhōng yú chá chū le shì qíng de zhēn xiàng。
The police finally discovered the truth of the matter.