Just imagine building a house without cement or nails to hold together.
想象一下不用水泥或钉子建一所房子。
2
It used 60% less cement (水泥) than a man-made house.
它比人造的房子少用了60%的水泥。
3
The House also targeted the EPA's regulations on cement plants, approving in a 250-177 vote an amendment prohibiting the agency from using funds to implement or enforce the rule.