这是一个困难的处境，我不知道解决办法是什么。

It's a difficult situation and I don't know what the ___answer is.

我们需要找到解决市中心交通拥堵的办法。

We need to find an ___answer to the traffic congestion downtown.

对于气候变化的问题，没有简单的解决方案。

There's no simple ___answer to the question of climate change.