書面許可 shū miàn xǔ kě

DEFINITIONS

  1. written permission
  2. written authorization

CHARACTERS

書 shū book, letter, document; writings
面 miàn
HSK 1
face; surface; plane; side, dimension
許 xǔ allow, permit; promise; betroth
可 kě
HSK 2
may, can, -able; possibly