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工作学习 / 外语学习 / “一元一次方程” 用英语怎么说？ 那“一元二次方程”呢？
-consonant(bluebay);
2008-12-21
(#4939059@0)
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linear equation with one unknown, Quadratic equations with one unknown
-7755(daysbeingwithmom);
2008-12-21
(#4939191@0)