Correct

半空

/ bànkōng / 
Strokes

Definition

midair

Example

As a Noun

almost empty; shrivelled

1
Bànkōng
半空
de
的
píngzi
瓶子

half empty bottle

As a Noun

mid-air

2
Liǔxù
柳絮
zài
在
bànkōng
半空
piāodàng
飘荡
  
。

Willow catkins are drifting/flying in the air.