There's no obvious solution to the problem.

　　這個問題尚無公認的解決辦法。

　　I managed to find a solution to the problem.

　　我設法找出了解決問題的辦法。

　　When would such a solution be possible?

　　什么情況下可以這么解決？

　　We need to set about finding a solution.

　　我們得著手尋找一個解決辦法。

　　Do you have a better solution?

　　你有更好的解決辦法嗎？