-fonddream;daydreaming;anidledream;apipedream;asillynotion;aspire[hanker]aftertheimpossible;beinfatuatedwithandindulgeinvainhopes;beobsessedwith(some)wild[fantastic]ideas;beonlydaydreaming;cryforthemoon;foolishexaggeratedhopes;get[wring]waterfromaflint;goonawild-goosechase;hitchone'swagontoastar;hopevainlyfor;sillyandfantastic;(benothingmorethan)wishfulthinking;Youmustbeoutofyourmind!:
“Don'tkidyourself!”“不要痴心妄想!”