基本解释不能保证实现的诺言；渺茫的希望同根派生 pie in the sky相关词英汉例句Their plans to set up their own business are just pie in the sky. 他们创办自己公司的计划只不过是空想罢了。pie in the sky更多例句英英字典剑桥英英字典something that you hope will happen but is very unlikely to happenpie in the sky剑桥字典pie in the sky柯林斯字典