片语
Preferential trade arrangements优惠贸易安排
preferential trade system特惠贸易制度
preferential trade association优惠贸易协会
preferential trade entitlement[贸易]
a preferential trade area也被称为特惠商业区
Preferential Trade Area惠贸易区
Preferential Trade Arrangement优惠贸易安排
Preferential Trade Agreements惠贸易协定
Preferential Trade Agreement特惠贸易协定 (PTA)