Moreover, when the matrix involved in the two-sided obstacle problem is a symmetric and nondegenerate matrix, the sequence converges to a solution of the problem. 并且,当矩阵为非退化对称矩阵时,该序列收敛到双边障碍问题的解。
Jordan always invites his friends over to his house. 乔丹总会请朋友到他家做客。
The two girls and Jordan leaned together confidentially. 两个小姑娘和乔丹诡秘地把头靠在一起。