单词	root of a word
释义	root of a word 词根
随便看	weighted rational interpolation weighted realized bipower variation weighted realized covariance weighted realized variance weighted realized volatility weighted reciprocal weighted reciprocal lattice weighted recursive least square Weighted reduetion weighted reflectance weighted regions weighted regression weighted regression analysis weighted regression estimator Weighted regression model weighted relation weighted relation web weighted relative value weighted residual weighted residual finite element weighted residual formulation weighted-residual luethod weighted residual method weighted residuals method weighted residual sum