1·He worked out such a difficult math problem.
他解出了一道如此难的数学题。
2·This math problem should be worked out in half an hour.
这道数学题应该在半小时内解出来。
3·Michael, could you please help me work out this math problem?
迈克尔，你能帮我解出这道数学题吗？
4·I was discussing a math problem with Joe when Mike called me up.
迈克打电话给我时，我正在和乔讨论一道数学题。
5·The math problem is so easy and the students can solve it easily.
这道数学题很简单，学生们很容易就能解出来。
6·I'm afraid we can't work out the math problem unless the teacher helps us.
如果老师不帮助我们，恐怕我们解不出这道数学题。
7·Nobody worked the math problem out.
没人解出这道数学题。
8·Teams of four students make a video illustrating a math problem and its real-world application.
由四名学生组成的小组制作一个视频，说明一个数学问题及其在现实世界中的应用。
9·Has Jack solved the difficult math problem?
杰克解出这道数学难题了吗？
10·By the time he was 14, he had studied advanced math on his own. It was the reason that he could answer the difficult math problem.
到他14岁的时候，他已经自学了高等数学，这也是他能够解答这道难题的原因。