HSK V1
Correct

后天

/ hòutiān /
Strokes

Definition

the day after tomorrow/acquired (not innate)/a posteriori

Example

As a Noun

day after tomorrow

1
hòutiān
大后天

three days from today

As an Adjective

postnatal; acquired; nurtured

2
Zhīshi
知识
shì
hòutiān
后天
de
de
  
,
shi
xiāntiān
先天
jiù
yǒu
de
  

Knowledge is acquired, not innate.