词汇	mastery of fear?
释义	mastery of fear? “勇气就是敢面对恐惧/克服恐惧??
随便看	matrix of quadratic form matrix of reachability matrix of relation matrix of relations matrix of relationship matrix of scalar product matrix of self-linking numbers matrix of semilinear transformation matrix of semi-linear transformation matrix of sensitive coefficients matrix of sum squares between classes matrix of sum squares within classes matrix of the coefficients matrix of the same dimensions matrix of the transformation matrix of transition probabilities matrix of transition probability matrix of two port matrix of unknown parameters Matrix of variance matrix of wavelet properties matrix of wires matrixoma matrix operation matrix operation for the elimination phase