The question can't be lightly dismissed as a fad or a dream. 不可輕率地認為這個(gè)問(wèn)題是一個(gè)怪念頭或空想而不予考慮。
His scheme for building a perpetual-motion machine is just a pipe dream. 他建造永動(dòng)機的計劃只是空想罷了。
Early retirement is a pipe dream for many. 早退是許多人都有的白日夢(mèng)。
When I was a child,I used to imagine myself to be a traveler in future,but that was only a day dream of a boy. 孩提時(shí)代,我總是想長(cháng)大后要做個(gè)旅行家,不過(guò)那只是一個(gè)孩子的白日夢(mèng)而已。