What does 成效 (chéng xiào) mean in English?

Card 280HSK 2010 Level 6280/2512
CARD280
PROGRESS11%
成效
chéng xiào
effect; result
Click to reveal
← Previous↑ DeckNext →

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