HSK V1
Correct

半天

/ bàntiān /
Strokes

Definition

half of the day/a long time/quite a while/midair

Example

As a Noun
half of the day; half day
1
Bàntiān
半天
xiūjià
休假

half-holiday

As an Adverb
a long time; quite a while
2
men
我们
tǎolùn
讨论
le
bàntiān
半天
  
,
dàn
suǒhuò
一无所获
  

We discussed it for hours, but got nowhere.

3
men
我们
děng
le
bàntiān
半天
cái
lái
  

We waited for a long time before he arrived.

4
bàntiān
半天
cái
suàn
chūlái
出来
  

It was quite a while before he did the sum.