形容词
1. Shoes and trees are concrete objects.
鞋和树是实物。
2. concrete什么意思
2. Beauty is not concrete but a door is.
美丽不是具体物，但门是。
3. concrete的近义词
3. His plan is not yet concrete.
他的计划尚不具体。
及物动词
1. The workmen are concreting the road.
工人们在用混凝土铺路。
名词
1. These buildings are made of concrete and steel.
这些房屋是用钢筋混凝土建成的。