We can solve math problems helping each other!
互相帮助的话，可以解开数学难题！
Solve math problems against the clock. Use it for joy or education.
解决简单的数学问题，很适合小孩子用。
And Lily is good at maths, she usually teaches me to solve math problems.
莉莉数学比我好，她通常教我解数学题。
But when I entered high school we have to solve a lot of math problems.
但当我上了高中我们必须解决很多问题。
But when I entered high school we have to solve a lot of math problems.
但当我上了高中我们必须解决很多问题。
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