鏡中花，水中月，但事情往往是鏡中無花，水中無月，竹樓打水一場空。今天偶們來學(xué)學(xué)虛幻、不真實的、子虛烏有的該如何表達(dá)？

1. mare's nest

mare's nest的淵源，簡單地近乎荒誕──因為母馬從不筑巢穴，所以mare's nest（母馬的巢穴）自然也就不會存在。由此，"mare's nest"常用來比喻“原以為重要的追求，到頭來來卻空歡喜夢一場”。或許，人們又覺得，不會筑巢的母馬既使筑巢穴也會搞得一團(tuán)糟（更為荒誕的推理），所以，"mare's nest"又可用來指代“雜亂、無序、棘手”的狀況。

a) a discovery that seems important but is actually of no value.
b) a confused situation or a very untidy place.

請看例句：

He thought the girl would be his wife-to-be, only to find a mare's nest.
他一直以為那個女孩會嫁給他，到頭來卻是空歡喜一場。

It's said that a 60-year-old woman was pregnant.
傳說一個60歲的老太太懷孕了。

It proved just to be a mare's nest.
根本就是子虛烏有。

2. be for the birds

毫無價值的，荒唐可笑的。

old-fashioned informal to be silly, useless, or not practical.

請看例句：

Their opinions on art are simply for the birds.
他們對藝術(shù)的見解真是荒唐可笑。