pipe dream
n.
1870; the sort of improbable fantasy one has while smoking opium; from pipe, n.1 + dream, n.. Old English pipdream meant "piping."
| 词汇 | pipe dream | 
| 词根词缀 | Online Etymology Dictionary pipe dream n. 1870; the sort of improbable fantasy one has while smoking opium; from pipe, n.1 + dream, n.. Old English pipdream meant "piping." | 
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