1N-COUNT (事物成长和发展的)环境,背景 A matrix is the environment or context in which something such as a society develops and grows. (事物成长和发展的)环境,背景 [formal]
...the matrix of their culture.
他们文明的摇篮
2N-COUNT (数学中)矩阵 In mathematics, a matrix is an arrangement of numbers, symbols, or letters in rows and columns which is used in solving mathematical problems. (数学中)矩阵