She tried her best to solve the problem.
她尽了最大的`努力解决这个问题。
In itself, it's not a difficult problem to solve.
这本身并不是个难解决的问题。
I dreamed up a plan to solve both problems at once.
我想出了一个可以立刻解决这两个问题的计划。
She leaned on him to help her to solve her problems.
她依靠他帮忙解决问题。
We'll solve the case ourselves and surprise everyone.
我们将自己解决这件事，并让所有人吃惊。