We sat on the concrete floor.

我们坐在混凝土地板上。

《柯林斯英汉双解大词典》

The concrete was ready mixed.

混凝土是搅拌好的。

《牛津词典》

Only the concrete skeleton of the factory remained.

厂房只剩下混凝土骨架了。

《牛津词典》

The concrete and glass museum is built next to a body of water, so it almost seems to float.

VOA: special.2011.04.13

It refers instead, to the concrete, collective, communal salvation from national suffering and oppression, particularly in the form of foreign rule or enslavement.

相反，它指的是很具体的，集体的，社会的拯救,把一个国家从苦难和压迫中解救出来，尤其是那些在外族统治者奴役下的。

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The child is able to do a lot, but still it's to some extent stuck in the concrete world.

虽然此时的儿童有能力进行一些逻辑思考,但他们的思维在某种程度上,仍然是局限于具体情境的

耶鲁公开课 - 心理学导论课程节选

But the concrete steps to achieve that will not be something the executive branch will decide.

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Later she sat down next to me on the concrete bench and read the telegram.

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When she looked up again, her front wheel was just inches from the concrete curb.

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