concrete1/ˋkɑŋkrit; ˈkɒŋkriːt/n [U] a substance used for building that is made by mixing sand, water, small stones, and CEMENT 混凝土 —concrete v [T]
concrete2/kɑnˋkrit; ˈkɒŋkriːt/adj 1 made of concrete 混凝土(制)的: a concrete floor 混凝土地面see picture at见 MATERIAL1 图2 clearly based on facts, not on beliefs or guesses 具体的﹐明确的: concrete information/evidence/facts etc We need concrete information about the man's identity. 我们需要有关那名男子身份的具体资料。