值班

zhíbān
  1. to work a shift
  2. on duty

CEDICT

Entry Composition

1 值 zhí
  1. value
  2. (to be) worth
  3. to happen to
  4. to be on duty
2 班 bān
  1. team; class; grade
  2. (military) squad
  3. work shift
  4. classifier for groups of people and scheduled transport vehicles

classifier: 個