commerce

commerce
noun
[mass noun]

the activity of buying and selling, especially on a large scale
贸易；商业
the changes in taxation are of benefit to commerce.
税收上的变化有利于贸易。
(dated)social dealings between people
(旧)社交，交往
(archaic)sexual intercourse
(古)性交

语源

mid 16th cent. (in sense 2): from French, or from Latin commercium 'trade, trading', from com- 'together' + mercium (from merx, merc- 'merchandise')