Meaning of jiě kāi:
jiě kāi
解开
Verb
to untie; to undo; to solve (a mystery)
Tā zhōngyú jiěkāi le zhège fùzá de mítí.
他终于解开了这个复杂的谜题。
He finally solved the complex puzzle.
Tā zhōngyú bǎ nàgè fùzá de shùxuétí gěi jiě kāi le.
他终于把那个复杂的数学题给解开了。
He finally managed to undo that complicated math problem.
Tā zhōngyú bǎ zhège míyǔ jiěkāi le.
他终于把这个谜语解开了。
He finally solved this riddle.
