What does 通商 (tōng shāng) mean in English?

Card 2586HSK Level 42586/3571
CARD2586
PROGRESS72%
通商
tōng shāng
have trade relation
Click to reveal
← Previous↑ DeckNext →

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