HSK C7-9
Correct

伊

/ yī / 
Strokes

Definition

(old) third person singular pronoun ("he" or "she")/second person singular pronoun ("you")/(May 4th period) third person singular feminine pronoun ("she")/(Classical Chinese) introductory particle with no specific meaning/that (preceding a noun)

Example

As a Particle

［used before a word or an expression for emphasis］

1
Yī
伊
shuí
谁
zhī
之
lì
力
  
?

To whom should the credit go?