pie in the sky
US /paɪ ɪn ðə skaɪ/
UK /paɪ ɪn ðə skaɪ/

成语
1.
空中楼阁, 画饼充饥, 不切实际的幻想
an idea or plan that is pleasant to imagine but impossible to achieve
示例:
•
His dream of becoming a millionaire overnight is just pie in the sky.
他一夜暴富的梦想只是空中楼阁。
•
The politician's promises sounded like pie in the sky to many voters.
这位政客的承诺对许多选民来说听起来像是画饼充饥。
在 Lingoland 学习这个单词