yì​wù HSK4

duty

义务 (義務) yì​wù
duty noun
duty; obligation; legal or moral responsibility

Obeying the law is the duty of every citizen.

volunteer noun
volunteer; voluntary; work or service provided without pay

He often participates in voluntary labor on weekends.

Frequency

Movie subtitles
17.4 per million appears in 7% of films
Written text
40.3 per million

Details

HSK 2.0
Level 5
HSK 3.0
Level 4

Sources

Definitions
CC-CEDICT