单词	duppion
释义	duppion 🌏重复
随便看	left-definite differential operator left-definite differential operators left-definiteness left definite Sturm-Liouville problem left deforming left deltoid left dense ideal left derivate left-derivation left derivative left derived functor left descending aorta left desolate or empty left deviation left deviationists left diagonal left diagonalcoronary artery left diagonalization left differentiable left differential left differential coefficient left digital display indicator left directed quasiorder left direct inguinal hernia left direct product