[经] 一式二份，一式两份...

in duplicate的音标：in duplicate的英式发音音标为：[in 'dju:plikit]in duplicate的美式发音音标为：[ɪn 'djupləkɪt]...

This agreement is done in duplicate.本协议书一式两份.Enclosed is our contract No. 345 in duplicate, of which please return us one copy, duly countersign.随函附上我方第345号合同一式两分, 请会签并回寄一份.The installations tested were of two kinds, eac...