will-'o-the-wisp
美
英 
- n.難以捉摸的人(或事物);鏡花水月;虛無之物;磷火
例句
With only a few hundred dollars on hand, travelling around the world is a will-o'-the-wisp.
手頭上只有寥寥數百元,環游世界只是一個空想。
One bullet, however, better aimed or more treacherous than the rest, finally struck the will-o'-the-wisp of a child.
可是有一顆子彈,比其余的都來得準些,或者說,比其余的都更為奸詐,終于射中了這磷火似的孩子。
A will-o'-the-wisp caught Bink's nervous eye.
一股鬼火在賓克神色緊張的眼前滑過。