What does 贸易 (mào yì) mean in English?

Card 651HSK 2010 Level 5651/1311
CARD651
PROGRESS50%
贸易
貿易
mào yì
(commercial) trade; CL:個|个[ge4]

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