n.混凝土( concrete的名词复数 )；具体物；（图案式）有形诗；图案诗体 双语释义：adj.(形容词)实体的,有形的 existing in material form; that can be touched, felt, etc.确实的,明确的,确定的 definite; positive英英释义： concreten.a strong hard building material composed of sand and gravel and cement and waterv.cover