fond dream; daydreaming; an idle dream; a pipe dream; a silly notion; aspire [hanker] after the impossible; be infatuated with and indulge in vain hopes; be obsessed with (some) wild [fantastic] ideas; be only daydreaming; cry for the moon; foolish exaggerated hopes; get [wring] water from a flint; go on a wild-goose chase; hitch one's wagon to a star; hope vainly for; silly and fantastic; (be nothing more than) wishful thinking; you must be out of your mind!: “不要癡心妄想!” “don't kid yourself!”
妄想 vain hope; wishful thinking; delusion; kink; delirium; ecphronia 癡心妄想 fond dream; wishful thinking; 妄想做某事 try in vain to do sth.; 他們的希望只不過是妄想。 their hopes were but vain