夏天的自由会导致“夏季退步”，孩子们会忘记他们在学校学到的一些阅读、写作和数学技能。
The freedom of summer can cause the "summer drop," where kids forget some of the reading, writing and math skills they've learned at school.
就在那一天，她不再教授阅读、写作和数学课程了。
On that very day, she stopped teaching reading, writing and math.
他们为阅读，写作和数学等课程选择了统一的课程表。
They chose a uniform curriculum for reading, writing and maths.
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