解决 + Problem/Issue
解决 (jiějué) is a verb meaning "to solve," "to resolve," or "to settle," used when addressing problems, disputes, or challenges. It often takes a noun object describing the issue being resolved.
我们需要尽快解决这个问题。
wǒmen xūyào jǐnkuài jiějué zhège wèntí.
We need to solve this problem as soon as possible.
他花了一整天才解决那个技术难题。
tā huā le yī zhěng tiān cái jiějué nà gè jìshù nántí.
It took him an entire day to solve that technical problem.
双方通过谈判解决了合同上的争议。
shuāngfāng tōngguò tánpàn jiějué le hétong shàng de zhēngyì.
Both sides resolved the contract dispute through negotiation.