单词	万金难买
释义	万金难买 be extremely valuable万金
随便看	permutation modulation Permutation module permutation network permutation number permutation of multiple-sets permutation of multi-set permutates permutation of stress permutation of the barycenter permutation operator permutation picture permutation polynomial permutation polynomials permutation polynomial vector permutation problem Permutation procrustes problem permutation product permutation relationships permutation representation permutation-reset sequential machine permutation/reset sequential machine permutation routing permutations permutations and combinations permutation schedule problems