【简答题】
A. international trade
B. external trade
C. terms of trade
D. free-trade area
E. commercial channels
F. customs duty
G. boycott
H. commercial transaction
I. broker
J. concessionaire, licensed dealer
K. payer
L. stocks
M. transit trade
N. wholesale
O. common market
P. cash sale
Q. importer
R. unfair competition
S. dumping profit margin
T. registered trademark
______倾销差价 ______自由贸易区