Correct

女大十八变

/ nǚ dà shí bā biàn / 
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/女大十八变-Chinese-idioms-Cchatty-5f465d24-8486-4037-8b15-3be2cdc8e128-1612776888.jpg

Collocation

1
俗话说,女大十八变
2
女大十八变,……越变越好看
3
真是女大十八变

Definition

女大十八变

Literally means:

a girl changes a lot after when turns eighteen

Actually means:

a girl changes fast and becomes more and more beautiful

It means girls change rapidly in their appearance and character in their growing-up process. It is often used to compliment a girl on her increaing beauty, ability or considerateness. Commendatory.

指女孩子在生长发育过程中容貌性格的变化快。常用来赞扬女孩子变得更好看,更懂事或更能干等。具有褒义色彩。

Example

Used as predicate, a minor sentence or object. (作谓语、小句、宾语)
1
Sān
三
nián
年
bùjiàn
不见
le
了
  
,
nǐ
你
zhēnshi
真是
nǚdàshíbābiàn
女大十八变
le
了
  
。
Yǐqián
以前
de
的
xiǎopàngwá
小胖娃
  
,
rújīn
如今
yǐjīng
已经
chéngwéi
成为
tíngtíngyùlì
亭亭玉立
de
的
dàgūniáng
大姑娘
le
了
  
。

Three years gone, you're really a woman. The old little fat woman has now become the big girl of Tingting Yuli.

2
Nǚdàshíbābiàn
女大十八变
  
。
Zhè
这
jī
几
nián
年
wǒjiā
我家
xiǎomèi
小妹
de
的
biànhuà
变化
kě
可
zhēn
真
dà
大
ā
啊
  
。
Tā
她
bùdàn
不但
xuéhuì
学会
le
了
liàolǐ
料理
zìjǐ
自己
de
的
shìqing
事情
  
,
hái
还
jīngcháng
经常
qù
去
bāngzhù
帮助
wáng
王
nǎinai
奶奶
zuò
做
jiāwù
家务
  
。

Eighteen changes for women. My little sister's changes over the years have been really big. Not only did she learn to take care of her own affairs, but she often went to help Grandma Wang with the housework.

3
Súhuàshuō
俗话说
  
,
nǚdàshíbābiàn
女大十八变
  
,
zhèhuà
这话
yī
一
diǎn
点
yě
也
bùcuò
不错
  
。
Gébì
隔壁
de
的
jiǎxiǎozǐ
假小子
biàn
变
de
得
wénjìng
文静
duō
多
le
了
  
。

As the saying goes, there's nothing wrong with a woman changing. The fake boy next door became much quieter.