What does 站岗 (zhàn gǎng) mean in English?

Card 3289HSK Level 43289/3571
CARD3289
PROGRESS92%
站岗
站崗
zhàn gǎng
point duty

Reveal: Click/Space/Enter/↑↓/w/s/j/kNavigate: ←→/h/l/a/d