bitterness

n. /ˈbɪtərnəs/ B2

怨恨；苦楚；辛酸

A feeling of anger and unhappiness because of unfair treatment.

仙境例句

The Mouse spoke of cats with great bitterness, for they had chased its family for years.

老鼠说起猫来满腔怨恨，因为猫追捕它们一家好多年了。