HSK C7-9/V7-9
Correct

乃

/ nǎi / 
Strokes

Definition

to be/thus/so/therefore/then/only/thereupon

Example

As a Verb

be

1
Xūyào
需要
nǎi
乃
fāmíng
发明
zhī
之
mǔ
母
  
。

Necessity is the mother of inventions.

2
Zhēn
真
nǎi
乃
guàishì
怪事
  
。

It's really strange.

As an Adverb

so; therefore

3
Tā
他
yīn
因
bùmǎn
不满
dāngcháo
当朝
  
,
nǎi
乃
yǐnjū
隐居
shān
山
zhōng
中
  
。

Discontented with the authority, he lived in seclusion in a mountain.

As an Adverb

only after; then

4
Fúyào
服药
hòu
后
bìng
病
nǎi
乃
huǎnjiě
缓解
  
。

Only after taking the medicine did his conditions improve.

As a Pronoun

your

5
Nǎi
乃
xiōng
兄

your brother

6
Nǎi
乃
wēng
翁

your father