刘元宁回答:
你把它粘贴到谷歌翻译里,里面有发音.
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1,(-a+b^2)(-a-b^2)2,(-1/2x+3y)(-3y-1/2x)3,(a^2+5ab)(5ab-a^2)4,(a^n+b)(b-a^n)5,(a+1)(a-1)(1+a^2)6,1225-75^27,51*498,(-1001)*(-999)9,(2x-3)(-2x-3)-x(x-1)10,(a-b+c)(a+b-c)11,(x+y)(x-y)(-x+y)(-x-y)12,(2m+n)^213,(-2m+n)^214,(-1/3x-3y)^215,(a+b)^2-(a-b)^