fool's paradise

英 [ˌfuːlz ˈpærədaɪs]

美 [ˌfuːlz ˈpærədaɪs]

n. 虚幻的幸福

牛津词典

noun

虚幻的幸福
a state of happiness that is based on sth that is false or cannot last although the happy person does not realize it

N-SING 幻想的幸福;愚人乐园;虚幻的满足
If you say that someone is living ina fool's paradise, you are criticizing them because they are not aware that their present happy situation is likely to change and get worse.
1. ...living in a fool's paradise of false prosperity.
  生活在虚假繁荣的虚幻幸福中

noun

She indeed lives in a fool's paradise as she always dreams about making a huge fortune overnight.
她总想顷刻间大发横财，的确有点想入非非。
He seems to be living in a fool's paradise.
他似乎生活在一个虚幻的乐境里。
A fool's paradise be a wiseman's hell.
傻子的天堂是智者的地狱。
He is living in a fool's paradise, in reality he has not a week to live.
他在做黄粱美梦，其实，他已活不到一个星期。
His uncle left him& 200 and John is living for the time in a fool's paradise.
约翰的叔叔留给他200英镑，他眼下正做着黄粱美梦。
After my fortune was gone and seeming friends had turned their backs on me, I realized I had been living in a fool's paradise.
在财产用光了，所谓的朋友视我如陌路人之后，我才明白自己过去是陶醉在虚无飘渺的乐境中。
Do not feel envious of the happiness of those who live in a fool's paradise, for only a fool will think that is happiness.
不要嫉妒那些在蠢人的天堂里享受幸福的人，因为只有蠢人才以为那是幸福。