孜孜以求 zī zī yǐ qiú

DEFINITIONS

  1. diligent and tireless (idiom)

CHARACTERS

孜 zī be as diligent as possible
孜 zī be as diligent as possible
以 yǐ by means of; thereby, therefore; consider as; in order to
求 qiú seek; demand, request; beseech