单词	a keen edge
释义	a keen edge 利刃
随便看	geometric theory of function geometric theory of functions geometric theory of linear systems geometric theory of numbers Geometric Theory of Singular Perturbations geometric timing geometric tolerance geometric tolerances Geometric Space geometric spline geometric splines geometric spot geometric spreading geometric spreading correction geometric square geometricss geometric stability geometric stability of framed structure geometric stairs geometric standard deviation geometric standard measurement geometric statics geometric statistics geometric status geometric stereoisomeride