弄懂难题的英语怎么说

"To solve a difficult problem" 是表示弄懂难题的常用说法。
"Solve" 是一个动词，意思是 "解决，解答"。在这里，它表示在思考或计算的过程中，找到一种方法来解决问题。
例句：
He spent hours trying to solve the math problem. 他花了几个小时试图解决这道数学题。
She was able to solve the puzzle in just a few minutes. 她在几分钟内就解决了这个谜题。
The team worked together to solve the problem. 这个团队一起努力解决这个问题。
"Difficult" 是一个形容词，意思是 "困难的"。在这里，它描述了所解决的问题是很难的。
例句：
The math problem was very difficult, but he was determined to solve it. 这道数学题很难，但他决心要解决它。
The puzzle was so difficult that no one was able to solve it. 这个谜题太难了，没人能解决。
She faced many difficult challenges while working on the project, but she was able to overcome them all. 在做项目的过程中，她面临许多困难的挑战，但最终都成功克服了。