Correct

孜孜

/ zīzī / 
Strokes

Definition

diligent/hardworking/industrious/assiduous

Example

As an Adjective

diligent; industrious; hardworking

1
Zīzīyǐqiú
孜孜以求

diligently strive after; assiduously pursue; make an assiduous pursuit (of)