n. a strong hard building material composed of sand and gravel and cement and water
v. cover with cement
v. form into a solid mass; coalesce
a. capable of being perceived by the senses; not abstract or imaginary
n. 凝结物, 混凝土
a. 具体的, 实在的, 混凝土的
v. (使)凝结, 用混凝土浇筑
1. The building is made of concrete and steel.
这座建筑是由混凝土和钢铁建成的。
2. We need to pour concrete for the new sidewalk.
我们需要为新的人行道浇筑混凝土。
3. The artist used concrete to create a modern sculpture.
这位艺术家使用混凝土制作了一座现代雕塑。