The mathematics applies the problem, once linear equation, needs the step answer!数学应用题, 一元一次方程, 要步骤答案!...

difluorizated的音标：difluorizated的英式发音音标为：['daɪflʊəraɪzeɪtɪd]difluorizated的美式发音音标为：['daɪflʊəraɪzeɪtɪd]...

二氟化的...