言之有物

    yánzhīyǒuwù

    1. Idiomto have substance (of one's words)

    他的演讲言之有物,每一个观点都有详细的数据支持。Tā de yǎnjiǎng yánzhīyǒuwù, měi yīge guāndiǎn dōu yǒu xiángxì de shùjù zhīchí.His speech was well-substantiated, with each point backed by detailed data.