pipe dream片語KK [paɪp drim] /paɪp dɹim/發音片語1白日夢、空想、癡心妄想Owning a house in this city is just a pipe dream for us.在這座城市買房子對我們來說只是個白日夢。名詞1白日夢、空想He called the plan a pipedream and refused to invest.他說這個計畫純屬空想，拒絕投資。