Correct

泡影

/ pàoyǐng / 
Strokes

Definition

lit. froth and shadows/fig. illusion/mirage

Example

As a Noun

visionary hope/plan/scheme; bubble

1
Tā
她
de
的
xīwàng
希望
huāzuō
化作
pàoyǐng
泡影
  
。

Her hopes came to nothing/vanished.

2
Huāzuō
化作
pàoyǐng
泡影

vanish like soap bubbles; melt/vanish into thin air; end/go up in smoke; come to nothing

3
Chéngwéi
成为
pàoyǐng
泡影

fall through; evaporate; crumble to dust