duplicate copy造句

1、Yes, a duplicate copy is enough.
是，你给我复印一份就行。

2、Otherwise, it's just storing in memory a duplicate copy of the POST data, which isn't needed.
否则，它仅在内存中存储POST数据的一个副本，而这没有必要。

3、A.5 One duplicate copy of the cable or telex advice of shipment as.
本交货条件第17条规定的装船通知电报或电传副本一份。