![](http://image.wenweipo.com/2016/07/15/a27e.jpg)
A maths problem is a maths calculation that needs to be solved. The boy says that his maths book is unhappy because it has a lot of problems (which could also mean worries or preoccupations).
男孩問:為什數學課本這麼不快樂呢?它有很多問題(problems)呢!
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■漫畫&說明︰英國文化協會
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