词根：dissatisfy
dissatisfaction 不满；令人不满的事物
dissatisfy 不满足；使……感觉不满
1.Either or both feel dissatisfied or resentful.
他们中有一方或者双方都感到失望和忿恨。
2.Either or both feel dissatisfied or resentful.
3.But young people are always dissatisfied.
但年轻人总是不知足。