What does 滚动 (gǔndòng) mean in English?

Card 991HSK Level 4991/3571
CARD991
PROGRESS28%
滚动
滾動
gǔndòng
roll; welter(Verb)
Click to reveal
← Previous↑ DeckNext →

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