customs union

agreement between states on what customs duties are to be paid on each other's goods 关税联盟（国与国之间就双方货物的徵税问题缔结的协定）.

cushion, cushy, cusp, cuss, cussed, custard, custard pie, custodial, custodian, custody, custom, Custom House, custom-built (also custom-made), customarily, customary, customer, customize, customize, -ise, customs, customs house, cut, cut across, cut at sb/sth, cut back, cut down, cut down on, cut glass, cut in, cut in (on sb/sth), cut into, cut off, cut out, cut out for, cut sb off, cut sb up, cut sb `down, cut sb. off, cut sb/sth from sth, cut short, cut sth away (from sth),