[经] 一式二份，一式两份...

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...

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]...