1 . insatiability
insanity 精神錯亂insatiability 不知足insatiable 不知足的
2 . Discontent
Discontent is the first step in pross ., 不知足是前進(jìn)中的第一步.
3 . discontented
If you are discontented ,, 如果你不知足,
4 . not contented
He is not contented even though he is very rich ., 即使他有錢 , 但還是不知足.