la-la land
noun /ˈlɑː lɑː lænd/
/ˈlɑː lɑː lænd/
[uncountable] (North American English, informal)- (British English cloud cuckoo land)(disapproving) if you say that somebody is living in la-la land, you mean that they do not understand what a situation is really like, but think it is much better than it is
幻想世界；脱离现实的幻境 - Los Angeles or Hollywood, especially with regard to the film and television industry
拉拉土地： 洛杉矶或好莱坞，尤其是在影视业方面
词源la-la, reduplication of LA (i.e. Los Angeles).