英語中，pipe dream 是一個很有趣的習語，不是「管子夢」的意思，而是引申為「白日夢；空想」的意思。今天我們一起通過幾個例句來學習一下這個習語的用法。
例句1：Don’t waste your time on pipe dream.
不要為白日夢浪費時間了。
例句2：You can forget it. It's only a pipe dream.
你可以忘掉它，那只是空想。
例句3：Her plans for a movie career were nothing but a pipe dream.
她計劃進入影視圈簡直就是在做白日夢。
例句4：Tom would love to have a beautiful mansion, but that is a pipe dream.
湯姆很想有棟豪宅，但只是一種空想。
例句5：My friend Tom has this pipe dream about becoming a famous movie star.
我的朋友湯姆一直在做白日夢，想成為一個電影明星。
例句6：Tom’s plan to build a forest cabin by the lake was just a pipe dream.
湯姆想在湖濱築一林中小屋的計劃不過是個美夢罷了。
例句7：Tom would like to buy a villa in Shanghai when he retires, but with his limited resources it is only a pipe dream.
湯姆退休後想在上海買一棟別墅，但就他有限的財力而言，這只是一種空想。