concrete
单词辨析：
指基于事实而非想象或猜测的，也指物体具体有形的。
Do you have any concrete examples to give?
你能举出具体例子吗？
We have no concrete evidence.
我们没有具体的证据。
He used concrete objects to teach addition and subtraction.
他用实物来教加减法。
指清楚无误或不会改变的。
The staff members demand a definite answer.
员工们要求给出明确的答复。
These experts have very definite ideas on how to bring up children.
关于如何培养孩子，这些专家有非常明确的想法。
Fix a definite date for the meeting.
定个确切的开会日期。
指基于具体事实或与事实有关的。
This report contains some factual errors.
这份报告中有一些与事实不符的错误。
I've got a great deal of factual information to support my argument.
我有大量的事实材料来支撑自己的论点。
指具体而详细的。
Here is a specific example of alcohol's effect on the body.
这里有一个酒精对身体影响的具体例子。
To be specific, I do system analysis and provide software support.
具体地说，我作系统分析以及提供软件方面的支持。
相关例句：
They live in 12 high-rise apartment buildings that sit in a desert of concrete
他们居住的地方是坐落于一片钢筋水泥丛林中的12栋高层公寓楼。
The Hotel has two strikes against it. One, it's an immense ugly concrete building. Second, it lies in a rather awkward position
该旅馆有两个缺点。其一，它是个非常难看的大型混凝土建筑。其二，它位于一个相当偏僻的地段。
He merely cleared and concreted the floors.
他只是把地面清理之后浇上了混凝土。
The Secretary General says the declaration must now be backed up by concrete and effective actions
秘书长说现在必须将宣言付诸具体有效的行动。
The bomb went off in a concrete dustbin at the peak of the morning rush hour.
在最繁忙的交通早高峰期，那枚炸弹在一个混凝土垃圾箱里爆炸了。
Your decision must be translated into specific, concrete actions.
你的决定必须转化为具体明确的行动。