Sentences with 'harden'
Example sentences and phrases with the word harden and other words derived from it.
• « These Amazonian soils are poor and harden when exposed to the sun and air. Without the protection of trees, the Amazon's nutrients disappear. »
• « The Unitarians used the peace treaty signed by the federal government with Brazil to criticize them and thus harden the opinion of the army chiefs who had fought against the Brazilian imperialists. »